post-office box


noun

(in a post office) a locked compartment into which the mail of a box renter is put to be called for. Abbreviation: POB, P.O.B.

Origin of post-office box

An Americanism dating back to 1825–35

British Dictionary definitions for post office box

post office box

noun

a private numbered place in a post office, in which letters received are kept until called for