Synonyms: category
Definition: a general concept that marks divisions or coordinations in a conceptual scheme
Similar words: concept, conception, construct
Definition: an abstract or general idea inferred or derived from specific instances
Synonyms: class, category, family
Definition: a collection of things sharing a common attribute
Usage: there are two classes of detergents
Similar words: aggregation, accumulation, assemblage, collection
Definition: several things grouped together or considered as a whole