NOUNS

English Grammar | SSC · BPSC · BSSC Exam Preparation

Noun — Definition

Noun → Naming word (any word that names a person, place, thing, idea, or quality)

Article + Word = Noun

Word + s/es = Plural Word (Noun)

Kinds of Noun

Proper Noun
Common Noun
Collective Noun
Abstract Noun
Material Noun

Proper Noun

Name of a specific person, place, or thing. Always begins with a capital letter.

Rahul, Bible, Delhi etc.

Common Noun

Name given in common to every person or thing of the same class.

Students, Players, Boy, Teacher etc.

Collective Noun

Name of a group or collection of persons/things considered as one whole.

Class, Team, Union, Govt., Army etc.

Abstract Noun

Name of a quality, action, or state — cannot be seen or touched.

Honesty, Theft, Poverty etc.

Material Noun

Name of a substance or material from which things are made.

Gold, Silver, Coffee, Sugar etc.

⚠ EXAM TRAP Generally, articles are NOT used before proper nouns. But if a proper noun is used as a common noun, an article (a/an) CAN be used before it.

I went to a Delhi.
I went to the Delhi.
You are a Salman Khan. ✔ (meaning: someone talented/famous like him)
You are a Tendulkar. ✔

Abstract Nouns — Three Types

Type	Examples
Quality	Honesty, Kindness, Bravery etc.
Action	Hatred, Theft etc.
State	Poverty, Illness, Childhood etc.

Noun & Numbers — Countable vs Uncountable

Countable	Uncountable
Can be counted (has numbers). Singular → Singular verb. Plural → Plural verb.	Cannot be counted (has quantity). Singular → Singular verb. Includes Abstract nouns, Material nouns.

Collective Noun: Group vs Members

Group (One Undivided Whole — Singular)	Members (Individuals of the Group — Plural)
The team is very strong.	The team are quarrelling like children.
The Jury consists of twelve persons.	The Jury are divided in their opinions.

The committee has submitted its report. ✔ (Group)
The committee hold different opinions. ✔ (Members)
Your family is well reputed. ✔ (Group)
Your family are well wishers. ✔ (Members)

⚡ QUICK RECALL Collective noun as one whole → singular verb. Collective noun as individual members → plural verb. Decide based on meaning in context.

The opposition has opposed the new bill. (as one unit)
The opposition are in disagreement over the new bill. (as individuals)

Noun Compounds — Rules for Making Plural

1. Noun + Noun → the first noun stays singular, the second noun (main noun) becomes plural

Singular	Plural
Garden chair	Garden chairs ✔ Gardens chair ✘
Table leg	Table legs
Ghost story	Ghost stories
Girl student	Girl students

2. Noun + Preposition + Noun (when both nouns are the SAME word) → no plural form used

Singular	Plural
Village after village	Villages after villages (no plural)
Hour after hour	(no plural)
Page after page	(no plural)
Word for word	(no plural)

3. Noun + Preposition + Noun (when both nouns are DIFFERENT words) → the first (main) noun becomes plural

Singular	Plural
Mother-in-law	Mothers-in-law ✔ Mother-in-laws ✘
Sister-in-law	Sisters-in-law
Member of parliament	Members of parliament
Commander-in-chief	Commanders-in-chief

⚠ EXAM TRAP Hyphenated words — only the "doer" part (the main noun) takes the plural, not the trailing preposition/particle.

Singular	Plural
Passer-by	Passers-by ✔ Passer-bys ✘
Looker-on	Lookers-on
Runner-up	Runners-up

Irregular Latin/Greek Plurals

Singular	Plural
Criterion	Criteria ✔ (Criterions ✘)
Phenomenon	Phenomena ✔ (Phenomenons ✘)
Curriculum	Curriculums / Curricula
Emporium	Emporiums / Emporia
Memorandum	Memorandums / Memoranda
Millennium	Millenniums / Millennia
Stratum	Stratums / Strata
Analysis	Analyses
Hypothesis	Hypotheses
Axis	Axes
Basis	Bases
Crisis	Crises
Synthesis	Syntheses
Diagnosis	Diagnoses

⚡ QUICK RECALL Find-the-error style sentences:

Children enjoy listening to ghost stories (not ghosts stories) especially on Halloween night.
City after city was destroyed by the army (not Cities...Cities...were).

Solved Examples

All his sisters-in-law have been invited to the party. (no error)
It was a grand 50th-anniversary celebration of his grandparents, so he thought of applying for leave to meet his whole family, especially his brother-in-laws → brothers-in-law.
The hunter, before the hunt, had drunk two silver cupsful → cupfuls of brandy.
All the boys → boy visitors are advised to stay in the queue... (here "boy" acts as an adjective before "visitors", so it stays singular)

Solved MCQ — Sentence Correction

"...having been one of the runner-up in the European Ballroom Championships many times."

A) Having been one of the runner-up in ✘
B) Having been one of the runner-ups in ✘
C) Having been one of the runners-up in ✔
D) Having been one of the runners-ups in ✘
E) No correction required ✘

Man / Woman as Prefix — Gender Compounds

Singular	Plural
Man doctor	Men doctors
Man servant	Men servants
Man teacher	Men teachers
Woman doctor	Women doctors
Woman teacher	Women teachers

Note: "Man" also has other compounds where only the plural marker on "man" itself changes:

Singular	Plural
Man eater	Man eaters
Man lover	Man lovers
Man hater	Man haters

⚠ EXAM TRAP "Man" has two different plural behaviours depending on meaning:

Man = Male → Singular: Man, Plural: Men
Man = Human Being → Singular: Man, Plural: Man (unchanged — generic/collective sense)

This is why "Man doctor → Men doctors" (male sense) but general statements about mankind keep "Man" unchanged.

Solved Examples — Man/Woman Compounds

I called many women servant → servants for the sake of my household work.
There have been ten woman → women doctors in our country.
All the women teachers are agitating against the haughty attitude of the principal. (no error)

Metropolis / Metropolitan — Confusion Pair

Metropolis (Singular Noun) → the capital or chief city of a country/region (महानगर / राजधानी / मुख्यनगर)

Metropolises (Plural Noun)

Mumbai is a metropolis.
There are four metropolises in India.

Metropolitan (Adjective) → relating to or denoting a metropolis or large city (महानगर संबंधी / महानगरीय)

Metropolitan police.
Metropolitan life.
Metropolitan culture.

Metropolitan (Noun) → an inhabitant of a metropolis or large city (महानगरवासी)

He is a metropolitan.
They are metropolitans.

⚠ EXAM TRAP "Metropolitan" (adjective) cannot directly modify "city" the way people often assume — "city" itself already means नगर, so pairing it with the adjective form of the same word is redundant/incorrect in these exam sentences:

He lives in a metropolitan city. ✘
Delhi is a metropolitan city. ✘
He lives in a metropolis. ✔
Delhi is a metropolis. ✔

Nouns: One Meaning in Singular, Another in Plural

Singular	Plural
Alphabet (a set of letters)	Alphabets (languages)
Good (benefit)	Goods (objects)
Custom (tradition)	Customs (tax)
Iron (a hard metal)	Irons (handcuffs)
Wood (branches of tree)	Woods (forest)
Air (atmosphere)	Airs (affected manners)
Force (strength)	Forces (army)
Quarter (one fourth)	Quarters (residence)
Word (promise)	Words (languages)
Work (business)	Works (literary works, factory)
Regard (respect)	Regards (well-wishes)
Chain (connected metal rings)	Chains (handcuff)
Pain (feeling hurt)	Pains (efforts)
Return (coming back)	Returns (profit/income report)
Water (liquid)	Waters (water body)
Amend (correction)	Amends (compensation)

⚡ QUICK RECALL These words look like simple singular/plural pairs but actually carry completely different meanings — always check context before deciding singular or plural form in a sentence.

Our teachers take great pain → pains to help us realize our goals. (effort = plural)
She hates people who break their words → word (promise = singular).

Solved Examples — Meaning-Shift Nouns

Wind, rain, cloud, and fog are common metaphoric images... they may connote differently in work → works of literature.
One doesn't need to define all the word → words.
I have learnt all the alphabets → alphabet of the English language. (alphabet = the whole set, singular)
While I am doing the house works → work, I like to listen to music on the radio.

Nouns Singular in Form and Singular in Function

All uncountable nouns come into this category.

Advice, Alphabet, Applause, Furniture, Ice, Information, Machinery, Scenery

Poetry, Luggage, Baggage, Work, Bread, Food, Evidence, Unemployment

Debris, Gold, Hair, Happiness, Money, Mischief, News, Rubbish

Anger, Chocolate

1. All are singular uncountable nouns — singular verb used after them
2. Cannot use a/an before them
3. Cannot make their plural forms

Sugar → a/an sugar ✘ sugars ✘
Information → a/an Information ✘ informations ✘

Uncountable nouns can be made countable:
Singular countable → "a piece of"
Plural countable → "pieces of"

Countable Units for Uncountable Nouns

A piece/bit of information
A piece/an item of furniture
A fit of anger
A bar of chocolate
A piece/pile of rubbish

⚠ EXAM TRAP Uncountable nouns are one of the most common SSC/BPSC error-spotting traps — never add "a/an" or "s" directly to them.

He has given me an information. ✘ → He has given me a piece of information. ✔
He wants to buy some furnitures. ✘ → He wants to buy some furniture. ✔
All the evidences were against her. ✘ → All the evidence was against her. ✔

Practice: Find the Error (Uncountable Nouns)

#	Sentence	Error → Correction
1	Karan managed the luggages in three trips while Rashmi and Sahil handled the paperwork.	luggages → luggage
2	The paintings of natural sceneries are selling like hot cakes.	sceneries → scenery
3	Lockdown-weary travelers eager for a change of sceneries can find room discounted as much as 50% at some properties.	sceneries → scenery
4	The handsome boy with the long hairs sighed deeply without removing his hand from his hat and went back to the market.	hairs → hair
5	She put her cell phone on its charger and explored the house, admiring his taste in everything from furnitures to paintings to simple decor.	furnitures → furniture
6	If a student needs advices about careers, he or she should consult the career officer.	advices → advice

Nouns Plural in Form but Singular in Function

(A) Names of Subjects:

Mathematics, Physics, Politics, Ethics, Linguistics, Acoustics

Mathematics is/are my weakest subject. (subject sense → singular)
Politics is/are an interesting subject.

If "the" or "possessive adjectives" (my, our, your, his, her, its, their) are used before subjects of study, they become plural nouns and take a plural verb.

Subject-Name Dual Usage

The mathematics (mathematical concept)
Mathematics (subject) — singular verb
His mathematics is/are weak. → with possessive adjective, becomes plural: "are"

(b) Games

Darts
Billiards
Chess
Draughts
Bowls
Snookers

Measles
Diabetes
Rabies
Shingles
Piles

(d) Titles of Books

The Arabian Nights
The Gulliver's Travels
Three Mistakes of My Life

Solved Examples — Subjects, Games, Diseases, Titles

Diabetes mellitus, commonly known as diabetes, are → is a metabolic disease that causes high blood sugar.
Her physics is → are very good, so if you are having problems with physics, you should ask for her help. (with possessive "her" → plural verb)
The ethics of the majority of teenagers is → are in very petty conditions nowadays. (with "the" → plural verb)
The politics of India is → are very pathetic because politicians are corrupt and inefficient. (with "the" → plural verb)
The Arabian Nights is a collection of very interesting episodes of adventure. (no error — title, singular)
The measles is a disease that cause → causes fever and red rash.

⚡ QUICK RECALL Subjects/games/diseases/titles ending in "-s" LOOK plural but take a SINGULAR verb by default — UNLESS preceded by "the" or a possessive adjective, in which case they switch to plural verb agreement.

Nouns Singular in Form but Plural in Function

Cattle
Cavalry
Gentry
Peasantry
Vermin
Nobility
Infantry
Police

1. All these words are plural nouns
2. Cannot use a/an before them
3. Cannot add s/es to them

Boys → a boys ✘ boyss ✘
Cattle → a cattle ✘ cattles ✘

Solved Examples — Singular-Form Plural-Function

Even though the cattle is → are alive when they are milked, vegans cite poor treatment of dairy cattle.
The last mounted cavalries → cavalry regiment of the Indian Army, 61 Cavalry, will soon lose its special tag.
The gentry of Mumbai does → do not like Salman Khan at all, even though he has a number of good movies to his credit.
In England, indeed a variety of causes hindered nobility or gentry from ever obtaining the importance which they obtained, for instance, in France. ✔ (nobility/gentry stay singular in form, plural verb)

People (always plural) → human beings or persons in general
Peoples → Nations / Races / Tribes

People vs Peoples

Many different peoples live in Europe. (= many different nations/races)

Nouns Plural in Form and Plural in Function

Articles of Dress (with two parts):

Pants, Trousers, Shorts, Breeches, Boxers, Pyjamas, Jeans, Underpants, Briefs

Tools and Instruments (with two parts):

Scissors, Bellows, Clippers, Shades, Glasses, Spectacles, Pincers, Tongs, Dividers, Goggles, Sunglasses, Binoculars

Boys → a Boys ✘
Pants → a Pants ✘
A pant ✘
A pants ✘
A pair of pant ✘
A pair of pants ✔
Two pairs of pants ✔

1. All plural noun, plural verb used with them
2. Cannot use a/an before them
3. Cannot remove s/es from them
4. To make singular countable: "a pair of"
5. To make plural countable: "pairs of"

⚠ EXAM TRAP These "two-part" nouns (trousers, scissors, spectacles, binoculars etc.) are always plural — even when referring to just ONE item. Never say "a trouser"; always "a pair of trousers".

He wants to buy a trousers. ✘ → He wants to buy a pair of trousers. ✔
Your pyjama is torn. ✘ → Your pyjamas are torn. ✔
She has lost her binocular. ✘ → She has lost her binoculars. ✔
Your spectacle is not good. ✘ → Your spectacles are not good. ✔

Solved Examples — Two-Part Nouns

He gifted her a jeans → a pair of jeans that she has been eyeing on for so long.
Spectacles is → are recommended for people suffering from myopia till they attain a specific age.
Note: Hyperopia (Farsightedness) makes it hard to see things that are close; Myopia (nearsightedness) makes it difficult to see things that are far away.
The jeans which you have bought are not cool. (No Error)
I have bought a goggle → a pair of goggles for you and two pairs of trousers for Gautam.
The scissors that you asked for is → are in the desk drawer in the bedroom.

More Plural-Only Nouns (Plural in Form and Function)

Alms, Amends, Arrears, Belongings, Bygones, Congratulations, Doings, Dues

Eatables, Edibles, Manes, Outskirts, Proceeds, Riches, Remains, Ruins

Surroundings, Sweets, Valuables, Vegetables

Solved Examples — Plural-Only Nouns

The beautiful surrounding → surroundings of the place enchanted me.
Give some alm → alms to the beggar.
Somebody has stolen my belonging → belongings.
You can see the ruin → ruins of the fort.
My belonging → belongings had been stolen from the waiting room as soon as I became somnolent. (No Error otherwise)
You are in the habit of giving alm → alms to all the beggars who come to you.
Keep your valuable → valuables safe in the locker as you live alone in the big house.

Nouns Unchanged in Singular and Plural

Corps, Barracks, Headquarters, Crossroads, Means, Works, Innings, Sheep, Deer, Swine, Data, Series, Species

I have seen a deer in the forest.
I have seen ten deers → ten deer in the forest.
Why do you want to sell all your sheeps → sheep?
There is a dangerous crossroad → a dangerous crossroads before you turn right.

⚠ EXAM TRAP Unchanged nouns (sheep, deer, series, innings, crossroads, headquarters, corps, barracks) NEVER take an "-s" for plural — the same spelling covers both singular and plural. Adding "-s" is one of the most frequently tested errors.

Solved Examples — Unchanged Nouns

In the popular book The Alchemist, the Shepherd Santiago learns life lessons by watching his sheeps → sheep.
It feels good to see young players playing so many wonderful inning → innings in the Indian Premier League.
People's Liberation Army (PLA) has, for the first time, commissioned a new, modern barrack → barracks for soldiers.
There is a very dangerous crossroads near by South Extension Part II, so drive carefully when you reach there. (No Error)

Some Other Nouns & Their Numbers

Means (Singular/Plural) — Method:

This means (method) of transport is a very old one.
Several means (methods) of transport are available to you.

Means (Plural only) — Income:

His means (monetary resources) are insufficient to keep him.

Hair (Singular, Uncountable) — बाल:

Your hair is black.
She is brushing her hair.

Hair (Countable, Sing/Plural) — used with a, one, two, three etc:

There is a hair in the soup.
You have three grey hairs.
Five of your hairs are brown.

Fruit (Singular, Unchanged) — फल:

Fruit is expensive now-a-days.
She does not like fruit.
He is going to buy some fruit.

We cannot use "a" with Fruit & cannot add "s" to Fruit (generic sense)

Fruit (Countable, Sing/Plural) — meaning "kind of fruit":

A banana is a fruit. (a kind of fruit)
A mango and an apple are two fruits. (two kinds of fruit)

Fruits (Always Plural) — लाभ / परिणाम (results/benefits):

Hard work bears fruits.
The fruits of the industry are very sweet.

Time (Singular, Uncountable) — समय:

Time waits for no man.
Time is money.
We should not waste time.

Note 1: Free time, Winter time, Summer time — Uncountable
Note 2: But "a long time" and "a short time" CAN be used

Time/Times (Countable, Sing/Plural) — बार (occasion):

I went there two times last week.
She came to see me several times last month.

Times (Always Plural) — special idioms & periods:

At times — occasionally (कभी-कभी)
At all times — always (हमेशा)
(a particular period in history) — काल: Roman times, Greek times, Ancient times

Nouns: Cases (Possessive Case) — Overview

Apostrophe-s ('s) — e.g. Tarun's car, Tanu's bag
Apostrophe alone (') — e.g. Boys' hostel, Girls' college
OF — e.g. the population of the country

Uses of Apostrophe-s ('s)

1. Singular Nouns:

A boy's shirt
A girl's dress
A teacher's life

2. Plural Nouns (without s/es):

Men's work
A women's college
Children's toys

3. Living Beings:

(i) Human Beings:

Rahul's car
Tina's bag
A girl's dress

(ii) Animals and Birds:

A dog's tail
A bird's nest
A spider's web

('s) is used at the end of compound nouns — the possessive marker attaches to the LAST word of the compound, never in the middle.

Compound Nouns with 's

Correct	Incorrect
Mother-in-law's behaviour	Mother's-in-law behaviour
Son-in-law's car	Son's-in-law car
Maid-servant's salary	Maid's-servant salary
Commander-in-chief's orders	Commander's-in-chief orders

⚠ EXAM TRAP In hyphenated compound nouns, the apostrophe-s always goes at the very END of the whole compound — never after the first word.

The mother's-in-law → mother-in-law's attitude towards the bride was reprehensible.
Every soldier follows his commander's-in-chief → commander-in-chief's orders diligently.

Two Owners / Joint Possession Rules

Ram and Sham's shop (jointly owned — one 's at the end)
Mr. Lala and Son's shop
Bhagat's and Sharma's Novels (separately owned — 's on each name)

Both are correct depending on meaning:

He went to Rahul and Sonali's house ✔ (one shared house)
He went to Rahul's and Sonali's houses ✔ (two separate houses)

He went to Rahul and Sonali's house, but the couple was not home. ✔
He went to Rahul's and Sonali's houses, but the couple was not home. ✔

⚡ QUICK RECALL "X and Y's [item]" = one shared thing. "X's and Y's [items]" = two separate things. Choose the form matching the intended meaning.

Rahul's and Shail's mural is so vibrant and detailed → correct: Rahul and Shail's mural (jointly created single mural)

('s) with Compound Pronouns

('s) can be used with all these words: Somebody / Anybody / Everybody / Nobody

I have stolen somebody's watch.
She needs to check everyone's bag.

⚠ EXAM TRAP If "else" is used after these compound pronouns, the ('s) shifts to attach to "else", not to the pronoun itself.

Nobody's else ✘ → Nobody else's ✔
I like nobody's else advice but yours. ✘ → I like nobody else's advice but yours. ✔
Your performance is better than everyone's else. ✘ → Your performance is better than everyone else's. ✔

Words Where ('s) Cannot Be Used

1. ('s) is NOT used with non-living things (in general):

Incorrect	Correct
The wall's painting	The painting of the wall
The house's roof	The roof of the house
A table's legs	The legs of a table

⚡ QUICK RECALL Exceptions where ('s) CAN be used with non-living things:

(i) Country and name of any place: India's future, China's population, America's history, Delhi's pollution
(ii) Non-living things with human-activity relationship: The plan's importance, The report's conclusion, The university's president, The book's author
(iii) With collective nouns: The crowd's reaction, The government's decision, The nation's security
(iv) With words denoting Time: A moment's delay, A week's holiday, A day's journey, Tomorrow's programme
(v) With words denoting Money: A rupee's worth, A dollar's worth

Solved Examples — Non-Living Things with 's

The car's front → front of the car is in extremely bad shape, I need to call the insurance people.
There are several items on the agenda for tonight → tonight's meeting. (Time word — exception applies, 's allowed)

('s) is NOT used with — (The + Adjective) constructions

The + Adjective (used as a collective/plural noun)

The rich, The poor, The healthy, The old, The sick, The unemployed, The disabled

These take a PLURAL verb (they refer to a group of people), but never take ('s):

Incorrect	Correct
The rich's hobbies	The hobbies of the rich
The poor's honesty	The honesty of the poor
The old's plight	The plight of the old
The blind's inner eyes	The inner eyes of the blind

Solved Examples — The + Adjective

The sicks and the olds was → The sick and the old were helped.
The rich always looks down upon poor → look down upon the poor.
Most of the time it's the bourgeois who suffers → suffer the indifference the most. The rich get incentives, the poor get subsidies, but it's the middle class who have to survive → has to survive all the fluctuations in the economy.
Teachers should be trained in sign languages till advanced level since teaching the deafs → deaf is not that easy, especially when the teacher has to depend on the interpreters.
There is nothing to be proud of if you help the blinds or the deafs → blind... deaf, because it is your moral duty to help those in need.

('s) is NOT used with — Something / Anything / Everything / Nothing

Indefinite Pronouns Restriction

Everything's beauty is temporary in this world. ✘ → The beauty of everything is temporary in this world. ✔
Nothing's existence is permanent in this world. ✘ → The existence of nothing is permanent in this world. ✔

Structures Where Both ('s) or (of) Can Be Used

Living Beings (inanimate thing which can be touched):

Rahul's car ✔ | The car of Rahul ✘
The cow's milk ✔ | The milk of the cow ✘
A girl's dress ✔ | The dress of a girl ✘

Living Being with Abstract Words:

Shakespeare's plays ✔ | The plays of Shakespeare ✔
Gandhi's death ✔ | The death of Gandhi ✔
Mr. Sinha's son ✔ | The son of Mr. Sinha ✔
A saint's life ✔ | The life of a saint ✔
Tina's bag ✔ | The bag of Tina ✘
Your wife's health ✔ | The health of your wife ✔
Your wife's laptop ✔ | The laptop of your wife ✘
My father's house ✔ | The house of my father ✘

Country and name of any place:

India's future ✔ | The future of India ✔
China's population ✔ | The population of China ✔
America's history ✔ | The history of America ✔
Delhi's population ✔ | The population of Delhi ✔

Non-living things with human-activity relationship:

The plan's importance ✔ | The importance of the plan ✔
The report's conclusion ✔ | The conclusion of the report ✔
The university's president ✔ | The president of the university ✔
The book's author ✔ | The author of the book ✔

With collective nouns:

The crowd's reaction ✔ | The reaction of the crowd ✔
The government's decision ✔ | The decision of the government ✔
The nation's security ✔ | The security of the nation ✔

⚠ EXAM TRAP Watch carefully — for plain objects owned by a person (Rahul's car, a girl's dress, Tina's bag), ONLY ('s) is correct; "of" is wrong. But for abstract nouns, places, and human-activity nouns, BOTH forms are usually correct.

Uses of Apostrophe (')

1. (') is used with plural nouns ending in s/es:

Correct	Incorrect
Boys' college	Boys's college / Boy's college
Girls' hostel	Girls's hostel / Girl's hostel

2. (') can also be used with Greek and Roman Names:

Pythagoras' Theorem
Socrates' Idealism
Sophocles' plays
Jesus' life
Moses' laws

3. (') or ('s) both can be used with names ending in (-s):

Option A	Option B
Gurudas' car	Gurudas's car
Mr. Jones' house	Mr. Jones's house
Kalidas' poems	Kalidas's poems
Yeats' poems	Yeats's poems

4. (') can be used with nouns ending in (-s) or (-ce) along with "Sake":

For justice' sake
For goodness' sake
For conscience' sake

Note — but the following phrases are correct WITH 's:
For God's sake ✔ For heaven's sake ✔ For mercy's sake ✔

Numeral Nouns — Dozen, Score, Hundred, Thousand, Million, Billion, Trillion

Singular	Plural
A/one hundred	two hundred ✔ two hundreds ✘
	ten million ✔ ten millions ✘

Note 1 → If counting is used before numeral nouns, "of" is NOT used after them.
One dozen eggs ✔ (not "one dozen of eggs")
Two hundred books ✔ (not "two hundreds of books")

Note 2 → If counting is NOT used before numeral nouns, they take plural form AND "of" is definitely used after them.
Dozens of eggs ✔ Hundreds of books ✔ Thousands of villages ✔

⚠ EXAM TRAP This is one of the most repeated SSC/BPSC error-spotting patterns — numeral nouns (hundred, thousand, million) stay SINGULAR when a specific number precedes them, but become plural + "of" when no specific number is given.

Seven thousands types of plants. ✘ → Seven thousand types of plants. ✔
Lend me ten thousands of rupees. ✘ → Lend me ten thousand rupees. ✔
Two million of people attended the meeting. ✘ → Two million people attended the meeting. ✔
Four dozens eggs. ✘ → Four dozen eggs. ✔
Thousand of people came. ✘ → Thousands of people came. ✔ (no specific number given, so plural + of)

Practice: Find the Error (Numeral Nouns)

#	Sentence	Correction
1	According to some estimates, there are seven thousands types of plants.	thousands → thousand
2	Would you please lend me ten thousands of rupees? I will give you back as soon as possible.	thousands of rupees → thousand rupees
3	Two million of people attended the meeting held in the Parade ground.	million of people → million people
4	Manjeet has bought four dozen eggs and a few pieces of pencil for his nephew.	No error
5	Thousand of people came to see the final test match between India and Australia yesterday.	Thousand of → Thousands of

Solved Examples — Numeral Nouns in Context

Two hundreds → Two hundred crore has been allocated in the budget of the financial year 2020-2021 for the G-20 presidency meet in India.
West Bengal CM appealed to the Centre to give one-time assistance of ten thousands rupee → ten thousand rupees each to migrant workers amid the COVID-19 crisis.
Million of devout → Millions of devout Hindus led by naked ascetics plunged into the Ganges on Monday.

Numeral Adjectives (Counting) — One, Two, Three, Four etc.

Counting + Plural Nouns:

One boy
Two boys
Two men
Five years
Ten rupees

If Counting + Plural Noun is used as a compound ADJECTIVE (before another noun), a hyphen is used between them and the plural noun must be in SINGULAR form.

Counting-Adjective Hyphenation Rule

I have ten rupees. ✔ (plain plural, no hyphen needed)
I have a ten rupees note. ✘
I have a ten rupee note. ✔ (compound adjective, singular)

A note
A ten rupee note
Five ten rupee notes

A plan
A five years → year plan
Two five years → year plans

Note → I have spent five years in University. ✔ (here "five years" is NOT a compound adjective — it's a plain plural noun object, so no singular conversion needed)

More Solved Examples — Compound Numeral Adjectives

A committee
A two men → man committee
Two two men → man committees
Note: Our company lost ten men in the fighting that day. ✔ (plain plural object — not a compound adjective, stays "men")

A flat
A two rooms → room flat
Two three rooms → room flats
Note: This apartment has three rooms. ✔ (plain plural object)

Why don't you take a two kilometers → kilometer walk in the morning, as it will help you stay fit and fine?
Can you bring a ten inches → inch ruler for me now, because I have to measure something?
Congress has constituted a five-members → member committee to formulate the party's stand on key ordinances.
He ordered three six-gallons → gallon barrels of paint for some work.

⚡ QUICK RECALL Test: Is "counting + noun" describing/modifying ANOTHER noun right after it (acting as one adjective)? → hyphenate and make the noun singular.
Is "counting + noun" standing alone as the object of the sentence? → keep it plural, no hyphen.

Master Table — Complete Revision

Topic	Key Rule
Noun definition	Naming word. Article + Word = Noun. Word + s/es = Plural Noun.
Kinds of Noun	Proper, Common, Collective, Abstract, Material
Proper Noun + Article	Normally no article; article allowed if used as common noun ("a Tendulkar")
Abstract Noun types	Quality (honesty), Action (theft), State (poverty)
Countable vs Uncountable	Countable = has numbers, singular/plural verb accordingly. Uncountable = quantity only, always singular verb
Collective Noun: Group	One undivided whole → singular verb (The team is strong)
Collective Noun: Members	Individuals of the group → plural verb (The team are quarrelling)
Noun + Noun compound	Second/main noun becomes plural (Garden chairs, Table legs)
Noun+prep+Noun (same word)	No plural at all (Village after village)
Noun+prep+Noun (different words)	First/main noun becomes plural (Mothers-in-law, Commanders-in-chief)
Hyphenated doer words	Only main noun part pluralized (Passers-by, Runners-up)
Irregular Latin/Greek plurals	Criterion→Criteria, Phenomenon→Phenomena, Analysis→Analyses, Basis→Bases
Man = Male	Plural: Men (Man doctor → Men doctors)
Man = Human being	Plural: Man (unchanged, generic sense)
Metropolis	Noun (capital/chief city); Plural: Metropolises
Metropolitan	Adjective (महानगरीय) OR Noun (महानगरवासी) — never "metropolitan city"
Meaning-shift nouns	Singular ≠ Plural meaning: Good/Goods, Custom/Customs, Iron/Irons, Work/Works, Pain/Pains, Word/Words
Uncountable nouns	No a/an, no s/es. Countable via "a piece of" / "pieces of"
Subjects (Maths, Physics etc.)	Look plural, singular verb by default; plural verb if preceded by "the" or possessive adjective
Games (Darts, Billiards etc.)	Always singular verb
Diseases (Measles, Rabies etc.)	Always singular verb
Titles of books	Singular verb (The Arabian Nights is...)
Singular-form, plural-function	Cattle, Cavalry, Gentry, Peasantry, Vermin, Nobility, Infantry, Police — no a/an, no s/es, always plural verb
People vs Peoples	People = persons in general (always plural); Peoples = nations/races/tribes
Two-part nouns	Pants, Scissors, Spectacles, Binoculars — always plural; use "a pair of" / "pairs of"
Plural-only nouns	Alms, Amends, Belongings, Riches, Remains, Ruins, Surroundings, Valuables — no singular form
Unchanged nouns	Sheep, Deer, Series, Species, Crossroads, Headquarters, Corps, Barracks, Innings, Means — same form both numbers
Means	Sing/Plural = method; Plural only = income
Hair	Uncountable (बाल, general); Countable sing/plural with a/one/two/three
Fruit	Uncountable (फल, general, no a/s); Countable = kind of fruit; Fruits (always plural) = results/benefits
Time	Uncountable (समय, general); Countable sing/plural = बार (occasion); Times (always plural) = idioms/periods
Numeral Nouns (hundred, thousand etc.)	Counting before them → singular, no "of" (two hundred books). No counting → plural + "of" (hundreds of books)
Numeral Adjectives as compound	Counting+Noun as adjective before another noun → hyphenated, noun singular (a ten rupee note, a five year plan)
Possessive Case forms	's (apostrophe-s), ' (apostrophe alone), OF
's with Singular Nouns	A boy's shirt, A teacher's life
's with Plural Nouns (no s/es)	Men's work, Children's toys
's with Living Beings	Humans, Animals, Birds — Rahul's car, A dog's tail
's with Compound Nouns	At the END of compound: Mother-in-law's, Commander-in-chief's
's with Joint/Separate ownership	Joint: X and Y's [one item]; Separate: X's and Y's [items]
's with Compound Pronouns	Somebody's, Everyone's; with "else" → Nobody else's (not Nobody's else)
's NOT used with non-living things	Use OF instead: painting of the wall, roof of the house (exceptions: place names, human-activity nouns, collective nouns, time words, money words)
's NOT used with The+Adjective	The rich, the poor, the old, the blind, the deaf — use OF: hobbies of the rich
's NOT used with Something/Anything/Everything/Nothing	Use OF: the beauty of everything, the existence of nothing
Both 's or of allowed	Places, abstract nouns with people, human-activity nouns, collective nouns: India's future / future of India
Apostrophe alone (')	Plural nouns ending in s/es: Boys' college, Girls' hostel
Apostrophe with Greek/Roman names	Pythagoras' Theorem, Socrates' Idealism, Jesus' life, Moses' laws
Names ending in -s	Both ' and 's allowed: Gurudas' car / Gurudas's car
Apostrophe with "Sake"	For justice' sake, For goodness' sake (but For God's sake, For heaven's sake, For mercy's sake keep 's)