/ ˈpɪdʒɪnhəʊl; NAmE -hoʊl/ noun , verb
■ noun
one of a set of small boxes that are fixed on a wall and open at the front, used for putting letters, messages, etc. in; one of a similar set of boxes that are part of a desk, used for keeping papers, documents, etc. in :
If you can't come, leave a note in my pigeonhole.
■ verb [ vn ]
1.
pigeonhole sb (as sth) to decide that sb belongs to a particular group or type without thinking deeply enough about it and considering what other qualities they might have
SYN categorize , label :
He has been pigeonholed as a children's writer.
2.
to decide to deal with sth later or to forget it
SYN shelve :
Plans for a new school have been pigeonholed.