count noun

WordReference Random House Learner's Dictionary of American English © 2019

ˈcount ˌnoun, n. [countable]

a noun that is countable. See count³.

WordReference Random House Unabridged Dictionary of American English © 2019

count′ noun′, 

Grammar a noun, as apple, table, or birthday, that typically refers to a countable thing and that in English can be used in both the singular and the plural and can be preceded by the indefinite article a or an and by numerals. Cf. mass noun.

• 1950–55

Collins Concise English Dictionary © HarperCollins Publishers::

count noun n

1. a noun that can be qualified by the indefinite article, and may be used in the plural, as telephone and thing but not airs and graces or bravery
   Compare mass noun