1. (noun)pigeonhole a specific (often simplistic) category Synonyms: cubbyhole
2. (verb)cubbyhole, pigeonhole a small compartment Synonyms: snuggery, snug, cubby, cubbyhole, pigeonhole
3. (verb)pigeonhole place into a small compartment Synonyms: stereotype, stamp
4. (verb)pigeonhole, stereotype, stamp treat or classify according to a mental stereotype Synonyms: stomp, stereotype, emboss, stamp, boss, stump, pigeonhole