Pigeonhole

[pij-uh n-hohl] /ˈpɪdʒ ənˌhoʊl/

noun
1.
one of a series of small, open compartments, as in a desk, cabinet, or the like, used for filing or sorting papers, letters, etc.
2.
a or recess, or one of a series of recesses, for to nest in.
3.
Also called pigeon hole, white hole. Printing. white space created by setting words or lines too far apart.
verb (used with object), pigeonholed, pigeonholing.
4.
to assign to a definite place or to definite places in some orderly system:
to pigeonhole new ideas.
5.
to lay aside for use or reference at some later, indefinite time:
We must pigeonhole this excellent plan until the time is ripe.
6.
to put aside for the present, especially with the intention of ignoring or forgetting, often indefinitely:
to pigeonhole an unwanted invitation.
7.
to place in or as if in a pigeonhole or pigeonholes:
to pigeonhole papers.
8.
to fit or provide with pigeonholes:
The desk must be pigeonholed for all my papers.
/ˈpɪdʒɪnˌhəʊl/
noun
1.
a small compartment for papers, letters, etc, as in a bureau
2.
a hole or recess in a dovecote for pigeons to nest in
3.
(informal) a category or classification
verb (transitive)
4.
to put aside or defer
5.
to classify or categorize, esp in a rigid manner

verb

[fr the separate compartments of a desk or sorting system, likened to the orifices in a pigeoncote]