GrammarNouns Countability

Russian nouns can be countable or uncountable.

Countable nouns refer to things you can count individually, for example стол (table), книга (book), человек (person).

Uncountable nouns refer to substances, abstract ideas, or mass concepts, for example вода (water), сахар (sugar), любовь (love), время (time) or работа (work).

What is the difference?

A countable noun names separate items that can be counted:

• один стол, два стола, три стола (one table, two tables, three tables)
• одна книга, две книги, пять книг (one book, two books, five books)
• один человек, два человека, пять человек (one person, two people, five people)

An uncountable noun usually names something that is seen as a mass, substance, activity, quality or abstract idea, not as separate units:

• вода (water)
• молоко (milk)
• сахар (sugar)
• любовь (love)
• работа (work)
• время (time)

So you can say три книги (three books), but not три воды (three waters). Instead, you count a container, portion or unit:

• три стакана воды (three glasses of water)
• две бутылки воды (two bottles of water)
• килограмм сахара (a kilogram of sugar)

Why it matters

The distinction between countable and uncountable nouns is important with words that express an indefinite quantity, such as мало (little, few), много (much, many), сколько (how much, how many), несколько (several).

With these words, Russian usually uses:

• Uncountable nouns → Genitive Singular
• Countable nouns → Genitive Plural

This is actually similar to English: "a lot of water" (uncountable, singular) vs "a lot of people" (countable, plural).

Uncountable nouns: Genitive Singular

• мало времени (little time)
• много сахара (a lot of sugar)
• сколько воды? (how much water?)
• мало работы (little work)
• много любви (much love)

Here the noun stays singular because it is treated as a mass or abstract whole.

Countable nouns: Genitive Plural

• много друзей (many friends)
• мало книг (few books)
• сколько столов? (how many tables?)
• несколько студентов (several students)

Here the noun is plural because you are talking about multiple separate things.

Typical indefinite quantity words

The most important words that often show this difference are:

• много (much, many)
• мало (little, few)
• немного (a little, a few)
• сколько (how much, how many)
• несколько (several)
• столько (so much, so many)

Examples:

• немного молока (a little bit of milk)
• несколько писем (several letters)
• столько людей (so many people)
• столько времени (so much time)

Edge cases

Countability is not always a fixed property of a word forever, sometimes it depends on meaning and usage.

The same noun may be used as:

• uncountable when it means a substance, material or abstract mass
• countable when it means separate items, types, portions or instances

Examples:

• чай usually means tea as a drink/substance and is uncountable:
  немного чая (uncountable, a little bit of tea)
  But in some contexts it can become countable, for example different kinds or servings:
  зелёные и чёрные чаи (green and black teas)
• сыр is usually uncountable as a substance:
  много сыра (much cheese)
  But countable for types:
  французские сыры (French cheeses)
• кофе is usually uncountable:
  немного кофе (a little bit of coffee)
  But in everyday speech it may also mean servings:
  два кофе (two coffees / two cups of coffee)
• работа often means work in general and is uncountable:
  много работы (a lot of work)
  But it can also mean a specific job, piece of work or work/task and then become countable:
  интересные работы (interesting works / pieces of work)

Substances and materials

Nouns for substances and materials are often uncountable:

• вода (water)
• молоко (milk)
• соль (salt)
• сахар (sugar)
• рис (rice)
• золото (gold)
• дерево can be countable as (tree), but дерево can also mean (wood) in some contexts, which is then mass-like

Examples:

• много риса (much rice)
• немного соли (a bit of salt)
• сколько золота? (how much gold?)

Abstract nouns

Abstract nouns are also often uncountable:

• любовь (love)
• счастье (happiness)
• музыка (music)
• время (time)
• информация (information)

Examples:

• мало времени (little time)
• много информации (a lot of information)
• немного музыки (a little bit of music)

But abstract nouns can sometimes become countable when referring to types, individual instances or works:

• радости жизни (the joys of life)

Activities and general processes

Some few nouns that name activities or processes are often uncountable:

• работа (work)
• учёба (studying, studies)
• помощь (help)

Examples:

• много работы (a lot of work)
• мало помощи (little help)

Containers, portions and units

With uncountable nouns you often count the unit, not the substance itself.

So instead of counting вода, молоко or сахар directly, you usually count things using

• containers: бутылка (bottle), стакан (glass), чашка (cup)
• portions: порция (portion), кусок (piece), ломтик (slice)
• measure units: килограмм, литр, грамм

Examples:

• два стакана воды (two glasses of water)
• три бутылки молока (three bottles of milk)
• кусок сыра (a piece of cheese)
• килограмм сахара (a kilogram of sugar)

Notice that the measured substance is usually in the Genitive after the container or measure word:

• стакан воды (a glass of water)
• бутылка вина (a bottle of wine)
• килограмм риса (a kilogram of rice)

Some nouns are usually only singular

Many uncountable nouns are used mainly or only in the singular:

• молоко (milk)
• сахар (sugar)
• любовь (love)
• время (time)
• информация (information)

This does not mean they can never have a plural in any context, but the safe default is: if the noun names a substance or abstract mass, treat it as uncountable and usually singular.

Countable nouns with quantity words

Countable nouns behave differently because they refer to separate items. With много, мало, несколько and similar words, they usually appear in the Genitive Plural:

• много книг
• мало машин
• несколько друзей
• сколько домов?

Same as in English: Many books, several friends, some houses - these are all countable and in plural.

Collective and group meanings

Sometimes Russian uses a singular noun to talk about a group or collective idea, which can make it feel a bit like an uncountable noun:

• народ (people, nation)
• молодёжь (youth)
• листва (foliage)

These are not usually counted as separate items in normal speech, even though they refer to many individuals or parts.

Examples:

• много молодёжи (a lot of young people / youth)
• мало листвы (little foliage)

Countability compatibility

Some few nouns may be countable in one language but not in the other, so do not fully rely only on English. For example:

• совет (advice, a piece of advice, a tip) is often countable in Russian when English advice is usually uncountable
• работа can mean uncountable (work) or countable (job / piece of work) depending on context

Summary

• Countable nouns name separate things you can count: книга, стол, человек.
• Uncountable nouns name substances, masses, abstract ideas or activities: вода, сахар, любовь, время, работа.
• With indefinite quantity words like много, мало, сколько, несколько:
  • uncountable → Genitive Singular: мало времени
  • countable → Genitive Plural: много друзей
• If you want to count it anyway, use a container, portion or unit instead: два стакана воды (two glasses of water), килограмм сахара (a kilogram of sugar).
• Some few nouns can be countable or uncountable depending on the meaning and context.