ENGLISH
REFERENCE

Countable & Uncountable nouns (advanced)

A2 Elementary

Countable nouns refer to individual items that can be numbered, while uncountable nouns refer to substances or concepts viewed as a whole. Some nouns can function as both depending on whether they refer to a specific item or a general substance.

Overview

Countable nouns have singular and plural forms and can be used with numbers. Uncountable nouns usually have only one form and cannot be counted directly with numbers. Many nouns change meaning between these two categories; for example, a cake refers to a whole unit, while some cake refers to a portion of the substance.

Countable vs. Uncountable

Use a/an only with singular countable nouns. Use some with plural countable nouns or any uncountable noun.

FeatureCountable (a cake)Uncountable (some cake)
Plural formYes (cakes)No
Articlesa / an / thesome / the / (no article)
Numbersone cake, two cakesNot possible

Examples

Common mistakes

  • I need an advice.

    I need some advice.

    Advice is always uncountable in English.

  • She has many homeworks.

    She has a lot of homework.

    Homework is uncountable and does not take a plural -s.

Practice

  1. I'm hungry. Can I have ___ apple?

    Show answer

    an

    Answer:an

    Why:Apple is a singular countable noun starting with a vowel sound, so it requires the article 'an'.

  2. We don't have ___ milk in the fridge.

    Show answer

    any

    Answer:any

    Why:Milk is uncountable. In negative sentences, we use 'any' instead of 'some'.

  3. The waiter brought two ___ (glass) of water.

    Show answer

    glasses

    Answer:glasses

    Why:When referring to the container, 'glass' is a countable noun and must be pluralized after the number two.

Related dictionary entries

© 2026 English Reference