post·​mark | \ˈpōs(t)-ˌmärk \

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


The package was postmarked 13 February.

Recent Examples on the Web: Noun

States like California also require a postmark no later than Election Day, though they must be received no later than three days after the election. Jen Kirby, Vox, "Why it takes so long to get election night results," 6 Nov. 2018 Colyer also questioned whether Kobach — the top election official in Kansas as secretary of state — was advising counties not to count some mail-in ballots, including those with missing or unreadable postmarks. Paulina Dedaj, Fox News, "Jeff Colyer concedes to Trump-backed Kris Kobach in Kansas GOP governor's race one week after vote," 15 Aug. 2018 The postal clerk there even hand-cancels every envelope — protecting the expensive stationary — with a postmark featuring interlocking hearts or doves. Caroline Picard, Good Housekeeping, "Why Finicky Brides Are Flocking to This Oregon Post Office," 4 June 2015 Stamps and postmarks on the postcards help date the articles. Brenda Yenke,, "New location for the Annual Postcard & Paper Show: Yenke Peddler antiques," 26 Apr. 2018 The form must be mailed with a postmark on or before April 17. Leada Gore,, "Tax Day 2018: Taxes due today; how to file for an extension," 17 Apr. 2018 Elections officials began posting results with a few hours left for voters to get a postmark on a ballot late Tuesday night. Devin Kelly, Anchorage Daily News, "Early results show Berkowitz has big lead in bid for re-election as Anchorage mayor," 4 Apr. 2018 Complaint forms must be given to the Board of Revision by 4:30 p.m. or have a postmark for Monday. Staff,, "Comment here on court and crime stories for Saturday, March 31, 2018," 31 Mar. 2018 Her column became so popular that hundreds of letters arrived at her home at 6334 Prytania St. every day, bearing postmarks from around the world. Mike Scott,, "Dorothy Dix, journalism pioneer: 1 of 300," 1 Mar. 2018

Recent Examples on the Web: Verb

And some states have committed to counting ballots that show up days later, so long as they are postmarked by Election Day. Andrew Prokop, Vox, "It could take days — or weeks — to find out which party won Congress," 6 Nov. 2018 Just make sure it’s postmarked by the end of the day or returned to a drop box by 8 p.m. Washington is one of five states holding elections; voters are also casting ballots in Kansas, Michigan, Missouri and Ohio. Paige Cornwell, The Seattle Times, "Live updates and results from Washington state’s 2018 primary election," 7 Aug. 2018 Otherwise, they must be postmarked no later than Election Day. Tim Ryan Williams, Vox, "Can you take paid time off work to vote? It may depend where you live.," 6 Nov. 2018 Ballots that arrive within three days of an election are valid as long as they were postmarked on election day. Diana Lambert And Darrell Smith, sacbee, "Sacramento County has 200,000-plus votes to count, giving some candidates sliver of hope," 6 June 2018 Pennsylvanians can also deliver a paper copy of the form to their county voter registration office or send it by snail mail — just make sure it’s postmarked by Monday. Patricia Madej,, "Voter-registration deadline for Pennsylvania's May primary election is Monday," 13 Apr. 2018 Under California law, ballots postmarked by election day and received within three days must be processed. Alexei Koseff, sacbee, "More than 2 million California votes left to count in primary election," 7 June 2018 California’s results, however, may not be finalized for days in some cases because the state will count any mail ballots postmarked by Tuesday. Steve Peoples,, "Democrats looking ahead as 8 states go to polls for primaries," 6 June 2018 John Artnz, the director of the Department of Elections in San Francisco, says a winner might not be known until Friday, which is also the state deadline for counties to receive ballots postmarked by June 5. NBC News, "Three San Francisco mayoral candidates have chance to make history," 5 June 2018

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.

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First Known Use of postmark


1678, in the meaning defined above


1716, in the meaning defined above

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Statistics for postmark

Last Updated

13 Nov 2018

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Time Traveler for postmark

The first known use of postmark was in 1678

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More Definitions for postmark



English Language Learners Definition of postmark

 (Entry 1 of 2)

: a mark placed over the stamp on a piece of mail that shows when the mail was sent and where it was sent from and that makes it impossible to use the stamp again



English Language Learners Definition of postmark (Entry 2 of 2)

: to put a postmark on (something)


post·​mark | \ˈpōst-ˌmärk \

Kids Definition of postmark

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

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More from Merriam-Webster on postmark

Rhyming Dictionary: Words that rhyme with postmark

Spanish Central: Translation of postmark

Nglish: Translation of postmark for Spanish Speakers

Comments on postmark

What made you want to look up postmark? Please tell us where you read or heard it (including the quote, if possible).


to make faulty or ineffective

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