Pigeonhole
WordNet
noun
(1) A small compartment
(2) A specific (often simplistic) category
verb
(3) Treat or classify according to a mental stereotype
"I was stereotyped as a lazy Southern European"
(4) Place into a small compartment
WiktionaryText
Noun
- One of an array of compartments for sorting post, messages etc. at an office, or college (for example).
- Fred was disappointed at the lack of post in his pigeonhole.
- A hole, or roosting place for pigeons.
Verb
- To categorize; especially to limit or be limited to a particular category, role, etc.
- Fred was tired of being pigeonholed as a computer geek.