Countable & Uncountable Nouns
Level A2 · Nouns & Quantity
Use countable nouns for things you can count individually — they have both a singular and plural form: one book, two books; a car, three cars. Use uncountable nouns for things treated as a whole or a mass, not individual units — they have only one form, with no plural: water, information, advice, furniture.
Form: countable nouns take a/an in the singular and -s in the plural (a book, three books); uncountable nouns never take a/an and never take a plural -s — not an information, not two waters. To count an uncountable noun, use a 'unit' word instead: a piece of information, a glass of water, a bit of advice, a piece of furniture.
Match the quantifier to the noun type:
- countable: how many, a few, many, several, a number of — how many books do you have?
- uncountable: how much, a little, much, a great deal of — how much water do you need?
- both: some, any, a lot of, no — I need some advice; I don't have any money.
- several everyday nouns are uncountable in English but countable in many other languages: information, advice, furniture, luggage, news, work — this is the single biggest source of mistakes here.
The most common mistake is treating an English uncountable noun as countable, especially advice, information, furniture, and luggage — many languages have a countable equivalent, so learners write an advice, informations, or furnitures. All four stay singular and article-free in English: she gave me some good advice, not an advice; I need more information, not informations.
Quick check: can you put a number directly in front of it (one, two, three)? → countable. Does it need a unit word first (a piece of, a glass of, a bit of)? → uncountable. When in doubt about a specific noun, check whether native speakers ever say 'two [noun]s' — if not, it's uncountable in English even if it feels countable in your own language.
Practice
Countable vs Uncountable: Articles & Plurals · Many vs Much & Classic Uncountables