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postmark

American  
[pohst-mahrk] / ˈpoʊstˌmɑrk /

noun

  • postmarks
    plural
  1. 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.


verb (used with object)

  • postmarks,
    present (3rd person singular)
  • postmarked,
    past participle,  past
  • postmarking
    present participle
  1. to stamp with a postmark.

postmark British  
/ ˈpəʊstˌmɑːk /

noun

  1. any mark stamped on mail by postal officials, such as a simple obliteration, date mark, or indication of route See also cancellation

"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

verb

  1. (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

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Participles

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Present

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Etymology

Origin of postmark

First recorded in 1670–80; post 3 + mark 1


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In Stevens County, the percentage of ballots rejected for having a late postmark jumped to 8%, from 1% in 2022.

From Salon ● Oct. 24, 2026

Mail-in ballots with an election day postmark will be continue to be accepted by county election officials through Tuesday.

From Los Angeles Times ● Jun. 4, 2026

“If the postmark is not the same as the city and state of the ‘supposed’ issuing bank, it might be an indication the check is fake.

From MarketWatch ● Apr. 27, 2026

Tickets go on sale on Friday and are restricted to people with a Bolton postmark.

From BBC ● Apr. 20, 2026

I studied the envelope for a return address but found only a fading postmark that read Cairnholm Is.,

From "Miss Peregrine's Home for Peculiar Children" by Ransom Riggs

Elizabeth Parmelee, a scholar of democracy and civic education at Metropolitan State University of Denver, explained how Colorado orchestrates its elections, which are conducted by mail, but without postmarks.

From Salon ● Jan. 12, 2026

Postal Service earlier this year may result in later postmarks than you might expect.

From Los Angeles Times ● Nov. 3, 2025

But a lifelong interest in stamps and postmarks seem to have led to him taking letters that caught his eye.

From BBC ● Mar. 25, 2025

States set their own election laws, and most rely on postmarks to determine if a vote was cast in time.

From Seattle Times ● May 21, 2024

She doesn’t quite understand how postmarks work—I don’t really, either—but I give my best explanation.

From "South of Somewhere" by Kalena Miller

In 2022, only a single ballot was postmarked late.

From Salon ● Oct. 24, 2026

WASHINGTON—The Supreme Court on Monday upheld state laws that count mailed ballots if they are postmarked by Election Day but arrive a few days afterward.

From The Wall Street Journal ● Jun. 29, 2026

This delayed overtaking of Pratt by Raman was largely expected, because California’s vote-by-mail system accepts ballots postmarked on or before Election Day and received within seven days of the election.

From Slate ● Jun. 11, 2026

Reality television personality Spencer Pratt, who was in second place on election night, saw his lead over Raman steadily erode as mail-in ballots postmarked as late as June 2 were counted.

From Los Angeles Times ● Jun. 9, 2026

But the summer brought him a letter, with no return name or address, but postmarked from Chicago.

From "Go Tell It on the Mountain" by James Baldwin

Also, at five of nine mail processing facilities studied, retail clerks who were postmarking ballots by hand sometimes used stamps with inaccurate dates, according to the report.

From Salon ● Sep. 11, 2026

The Postal Service, however, hasn’t viewed the record-keeping use of postmarking as a service.

From The Wall Street Journal ● Jan. 8, 2026

The other pieces include the time carriers return from their routes in the evening, postmarking mail at night and sorting the carrier’s mail before dawn.

From Los Angeles Times ● Sep. 17, 2020

Most postmarking takes place in Anchorage, a day or more away by mail from most of the state.

From Seattle Times ● Sep. 15, 2020

First of all, there’s a difference in messaging between mailing and postmarking.

From Slate ● Jul. 30, 2020

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