(in a door or partition) a slot through which letters can be pushed.
drop cultureRead more in this article about some frequently asked questions and fun facts related to our definitions.
Drop it like it’s hotRead more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of letter drop
An Americanism dating back to 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for letter drop
He heard the postman's step in the hall and saw the envelopes begin to shuttle themselves through the slit of his letter-drop.McTeague|Frank Norris