post·​mark | \ ˈpōs(t)-ˌmärk How to pronounce postmark (audio) \

Definition of postmark

 (Entry 1 of 2)

: an official postal marking on a piece of mail specifically : a mark showing the post office and date of mailing


postmarked; postmarking; postmarks

Definition of postmark (Entry 2 of 2)

transitive verb

: to put a postmark on

Examples of postmark in a Sentence

Verb The package was postmarked 13 February.
Recent Examples on the Web: Noun The thick envelope bearing a Spanish postmark immediately struck Bishop as odd. Matt Reynolds, Wired, 23 Feb. 2022 Mail ballots that arrived three days late would be valid, even without a postmark. The Editorial Board, WSJ, 24 Oct. 2021 Every December, post office workers in the small Wood County village (population 433) hand stamp 10,000 cards with a special Christmas postmark that features Rudolph and is designed by local schoolchildren. Chelsey Lewis, Milwaukee Journal Sentinel, 2 Dec. 2021 The mailers carry the postmark and approval from the Ohio Democratic Party, which gets a discount on bulk mailing. Andrew J. Tobias, cleveland, 28 Oct. 2021 This special picture postmark has been offered every Christmas season since 1983. Kirby Adams, The Courier-Journal, 9 Nov. 2021 Johnson said the envelope had a Sacramento postmark, and the return address was the Statehouse in Boise. From Usa Today Network And Wire Reports, USA TODAY, 3 Sep. 2021 Ballots that arrive in the mail up to seven days after an election would be counted, unless their postmark showed that they were mailed after Election Day. oregonlive, 24 June 2021 Where ballots received after Election Day are counted, a legible postmark from that day is generally required. Star Tribune, 7 Sep. 2020 Recent Examples on the Web: Verb So far, turnout has been anemic, but that could change because voters have until election day to postmark their ballots. Gillian Flaccus, ajc, 13 May 2022 Officials said voters who wait until the last day should use a ballot dropbox — available at select locations — or walk into a post office and ask the postmaster to hand-postmark their ballot. James Brooks, Anchorage Daily News, 23 Mar. 2022 However, a Postal Service spokesperson said there’s been a longstanding policy to postmark election mail, regardless of the type of postage on it, specifically because so many election laws rely on them. Jeremy Hsieh, Anchorage Daily News, 7 Jan. 2022 Deadline to postmark a letter for the program is Friday, Dec. 10. Marc Bona, cleveland, 2 Dec. 2021 Those who wish to object must postmark their letters by July 28, 2021. al, 27 Apr. 2021 The Postal Service says its policy is to postmark all ballots mailed by voters, whether they are prepaid by election officials or mailed with a stamp affixed by the voter. A Wall Street Journal Roundup, WSJ, 21 Oct. 2020 Voters had until Monday to postmark their ballots and mail them in. Andrew J. Tobias, cleveland, 2 Nov. 2020 Part of the issue is that while the Postal Service usually doesn’t postmark prepaid envelopes, ballots are an exception. Jess Bravin, WSJ, 20 Oct. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'postmark.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of postmark


1678, in the meaning defined above


1716, in the meaning defined above

Learn More About postmark

Time Traveler for postmark

Time Traveler

The first known use of postmark was in 1678

See more words from the same year

Dictionary Entries Near postmark



postmark ad

See More Nearby Entries 

Statistics for postmark

Last Updated

19 May 2022

Cite this Entry

“Postmark.” Dictionary, Merriam-Webster, Accessed 23 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for postmark


post·​mark | \ ˈpōst-ˌmärk How to pronounce postmark (audio) \

Kids Definition of postmark

: a mark put on a piece of mail especially for canceling the postage stamp

More from Merriam-Webster on postmark

Nglish: Translation of postmark for Spanish Speakers


Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!