Countable

Origin

From count("to enumerate") + -able +

Adjective

1. Capable of being counted; having a quantity.
2. (mathematics, of a set) Countably infinite; having a bijection with the natural numbers.
3. (mathematics, of a set) Countably infinite or finite; having a bijection with a subset of the natural numbers.
4. (grammar, of a noun) Freely usable with the indefinite article and with numbers, and therefore having a plural form.

Synonyms

• (having a bijection with a subset of the natural numbers) denumerable

Antonyms

• uncountable

Hyponyms

• (having a bijection with a subset of the natural numbers) finite, countably infinite

Hypernyms

• (countably infinite) infinite

Derived terms

• countable set
• countable additivity

Related terms

• countability