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drop letter

American  

noun

  1. a letter that is mailed to a local address at a post office without city delivery or a rural delivery service and must be picked up by the addressee.

Etymology

Origin of drop letter

An Americanism dating back to 1835–45

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.