What Is Number? (with Examples)

Number is a grammatical category which relates to nouns, pronouns, adjectives, and verbs. In English, the two number categories are singular and plural.

Examples of Grammatical Number

Below are examples of nouns, pronouns, adjectives, and verbs in the two number categories:
Word TypeNumber Category
Singular ExamplePlural Example
Nouncat, mousecats, mice
Pronoun I, me, you, he, him, she, her, it we, us, you, they, them
Adjective this, that, a, an, my, your, his, her, its these, those, our, your, their
Verb am, is, was, has, I play, he plays Are, were, have, they play

Some Constructions Must Agree in Number

When discussing grammar, you will hear terms like "the words must agree in number."

Here are some sentences that are wrong because they contain elements which do not agree in number:

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See Also

What does singular mean? What does plural mean? Glossary of grammatical terms