What does countability mean?
Countability is the grammatical property that determines whether a noun represents things that can be treated as separate, countable units. Countable nouns generally have singular and plural forms and can follow numerals, as in “three chairs.” Uncountable or mass nouns, such as “information,” “furniture,” and “water,” ordinarily do not take a plural form and are used with measures such as “a piece of” or “a glass of.” Countability can vary by language, so a noun that is countable in one language may be uncountable in another. The term is especially useful in grammar, linguistics, and language teaching because it identifies a central distinction in how nouns behave. It is more precise than merely saying that a word is “singular,” since countability concerns the grammatical treatment of the things a noun denotes rather than whether a particular noun form is singular.
nounThe grammatical property of being countable, especially the distinction between nouns treated as discrete units and nouns that are not. In linguistics and language teaching, it refers to the grammatical behavior of countable and uncountable nouns.
- The grammatical property of being countable, especially as it distinguishes countable nouns from uncountable nouns.
"The grammar lesson focuses on the countability of nouns such as “chair” and “information.”"
"Countability determines whether a noun can take a plural form and be counted as separate units."
"Teachers often explain countability with examples such as “chair” and “furniture.”"
Rare; “countability” is normally used as an uncountable noun.
"The study compares the countabilities of nouns in several different languages."
The difference between “an apple” and “some water” is countability at work: one is a singular noun, the other a mass noun.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does countability come from?
English countability was formed by adding the suffix “-ity” to “countable,” which in turn combines “count” with “-able.” “Count” ultimately comes through Old French from Latin computare, meaning “to reckon” or “calculate.” Related English forms include “account,” “recount,” and “discount,” all reflecting the same Latin origin.
How countability is actually used
This is chiefly a specialized term in grammar, linguistics, and language teaching. In everyday English, people are more likely to say “countable” or “uncountable” when discussing individual nouns.
Easily confused with countability
“Countable” describes a noun that can be treated as a discrete unit, whereas “countability” names the grammatical property that determines whether it can be so treated.