Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun category

2 senses of category

Sense 1
class, category, family -- (a collection of things sharing a common attribute; "there are two classes of detergents")
       => collection, aggregation, accumulation, assemblage -- (several things grouped together or considered as a whole)

Sense 2
category -- (a general concept that marks divisions or coordinations in a conceptual scheme)
       => concept, conception, construct -- (an abstract or general idea inferred or derived from specific instances)