English grammar · Beginner

English Nouns and Articles

Nouns name things; pronouns stand in for them; articles (a, an, the) tell the listener whether the thing is one of many or the one they already know about. The three work together in every noun phrase, and the article system is the part learners from most language backgrounds find hardest.

What it is

A noun phrase is built in layers. At its heart is the noun (coffee, book, teacher). In front of it goes a determiner, most often an article, which answers the question which one or how many (a book, the book, some coffee). Pronouns replace the whole phrase once it is known (it, she, mine). Whether a noun is countable or uncountable controls almost every choice in that chain.

I bought a book. The book was long. I lent it to my sister. It's hers now. Noun, article, pronoun, possessive: one small story.

How to spot it

Test the noun for countability. If you can put a number in front of it (three books), it is countable and needs an article or plural. If you cannot (three informations), it is uncountable and takes no a or an.

  • a book, two books (countable: takes a/an and a plural)
  • some advice, a piece of advice (uncountable: no a/an, no plural, counted with a unit)
  • the moon (the for something unique or already known)
  • I love music. (no article for uncountables and plurals in general)

Some nouns are countable in one meaning and uncountable in another: a coffee (a cup) vs. coffee (the drink), a paper (a newspaper) vs. paper (the material).

Nouns & Articles Quick Reference

The article decision in four questions

QuestionIf yesExample
Is the noun uncountable or plural, used in general?no articleWater is essential. Cats are curious.
Does the listener know which one you mean?thePass the salt. The sun is out.
Is it one of a group, mentioned for the first time?a / anI saw a fox. She's an engineer.
Is it a proper name?usually no articleParis, Maria, Mount Fuji (but the Alps, the Nile)

All 8 nouns & articles lessons

Three groups of pages live here. The noun pages cover countability, plurals, possessives, noun phrases, and group nouns. The pronoun pages take every type in turn: personal, possessive, reflexive, demonstrative, indefinite, reciprocal, and relative. The article pages split the system into a and an, the, and the cases where English uses no article at all. Learners searching for a single word will find it fastest with the search box on the hub; learners who want the system should start with articles in English or pronouns as the overview.

  • Reflexive Pronouns: A reflexive pronoun ends in -self or -selves: myself, yourself, himself, herself, itself, ourselves, yourselves, themselves. You use one when the object of a verb or preposition is the same person or thing as the subject (he cut himself), and also for emphasis, to stress that someone did something personally or without help (I fixed it myself). English uses reflexives far less than most European languages, so knowing when not to use one matters as much as knowing the forms.
  • Personal Pronouns: Personal pronouns stand in for people and things so that you do not have to repeat their names: I, you, he, she, it, we, and they as subjects, and me, you, him, her, it, us, and them as objects. The form changes with person (who is speaking, spoken to, or spoken about), with number (singular or plural), and with the pronoun's job in the sentence. English has lost most of its case endings, and these pronouns are the one place where the subject and object forms are still different.
  • Countable and Uncountable Nouns: Countable nouns name things you can count as separate units, so they have a plural and can follow a or an: one chair, two chairs, a chair. Uncountable nouns name substances, materials, and abstractions that English treats as a mass rather than a set of units: water, furniture, advice. They have no plural and never take a or an, and the distinction decides which quantifiers, articles, and verb forms you can use.
  • Possessive Pronouns: Possessive pronouns are mine, yours, his, hers, ours, and theirs, with its almost never used this way. Each one replaces a possessive adjective plus its noun: my book becomes mine, your car becomes yours. They stand on their own as the subject, object, or complement of a sentence, and they never take an apostrophe.
  • Articles in English: English has three articles: a and an (the indefinite article, one word with two spellings), the (the definite article), and the zero article, which is the deliberate absence of any article before plural and uncountable nouns used generally. Together they form one system: every noun phrase forces a choice, and the choice tells the listener whether the noun is new or known, one of many or the only one, a specific example or the whole class.
  • Demonstrative Pronouns: The demonstrative pronouns are this, that, these, and those. They point to something without naming it, and they carry two pieces of information: how many (this and that are singular, these and those are plural) and how near (this and these are close to the speaker, that and those are further away). The same four words also work as determiners in front of a noun (this seat), so the pronoun is what you get when the noun is left out.
  • Possessive Adjectives: Possessive adjectives are the words my, your, his, her, its, our, and their. They go in front of a noun to say who it belongs to or is connected with (my phone, their house, her brother). The form is chosen by the owner, not by the noun: a woman's book is her book whether she has one book or ten, and a man's books are his books. They never take an apostrophe, and they replace the article rather than combining with it.
  • Noun Phrase Examples: A noun phrase is a noun or pronoun together with all the words that belong to it. At its smallest it is a single word (water, she); at its largest it has a determiner (the), one or more premodifiers (old wooden), the head noun (bridge), and a postmodifier that follows the head (over the river). The examples below label each part so you can see how the same four slots build phrases of every size.

Browse the full English grammar library

Nouns & Articles FAQs

When do I use a, an, and the?
Use a or an for a singular countable noun that the listener cannot yet identify: I saw a dog. Use an when the next word begins with a vowel sound, not a vowel letter: an hour, a university. Use the when both of you know which one is meant, whether because it was mentioned before, because there is only one, or because the context makes it obvious: the dog I saw, the sun, the kitchen.
Why does English have no article in some sentences?
Plural and uncountable nouns used in a general sense take no article: Dogs are loyal, Sugar is sweet. Most proper names, meals, languages, and institutions used for their purpose also go without one: in Spain, at lunch, speaks Japanese, in hospital (British) or in school. This zero article is a real choice, not a missing word.
What is the difference between a possessive adjective and a possessive pronoun?
A possessive adjective goes in front of a noun: my book, their house. A possessive pronoun replaces the noun and stands alone: that book is mine, the house is theirs. His and its are the only forms that look the same in both roles, and its never takes an apostrophe.
How do I make plurals in English?
Add -s to most nouns (cats), -es after s, x, z, ch, and sh (boxes, watches), change -y to -ies after a consonant (babies), and learn the irregulars individually: child and children, man and men, tooth and teeth, sheep and sheep. Uncountable nouns have no plural at all: informations and advices are errors.
What is a group noun, and is it singular or plural?
A group noun (team, family, government, staff) names a set of people as one unit. In American English it is almost always singular: the team is winning. British English allows a plural verb when the speaker thinks of the members as individuals: the team are arguing about it. Either way, be consistent within a sentence.