- an official mark stamped on letters and other mail, serving as a cancellation of the postage stamp and indicating the place, date, and sometimes time of sending or receipt.
- to stamp with a postmark.
Origin of postmark
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for postmark
A postmark is the stamp put on the outside of a letter at the office where it is posted.
It bore the Paris postmark: on it was drawn the route from Verdun to the frontier.A Nest of Spies
There was no date and no address, but the postmark was Bradfield in the north of England.The Stark Munro Letters
J. Stark Munro
To my surprise I noticed that the stamp in the corner was English and the postmark "London."Kent Knowles: Quahaug
Joseph C. Lincoln
He glanced at the postmark, saw that it was Nantucket, and stuck the note behind the clock.Cap'n Eri
Joseph Crosby Lincoln
- any mark stamped on mail by postal officials, such as a simple obliteration, date mark, or indication of routeSee also cancellation
- (tr) to put such a mark on mail
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for postmark
Online Etymology Dictionary, © 2010 Douglas Harper