English Dictionary

countable

/ˈkaʊntəbəl/

adj

Capable of being counted; having a quantity. / (mathematics, of a set) finite or countably infinite; having a one-to-one correspondence (bijection) with a subset of the natural numbers.

There are five countable objects on the table.

意味（1）

Capable of being counted; having a quantity.

意味（2）

(mathematics, of a set) finite or countably infinite; having a one-to-one correspondence (bijection) with a subset of the natural numbers.

意味（3）

(mathematics, of a set) Countably infinite; having a bijection with the natural numbers.

意味（4）

(grammar, of a noun) Freely usable with the indefinite article and with numbers, and therefore having a plural form.

In these extracts the word abuse is used in the sense of ‘an individual piece of invective’ or ‘an abusive comment’ and is clearly a countable noun.