post·mark
ˈpōs(t)-ˌmärk 
: an official postal marking on a piece of mail
specifically
: a mark showing the post office and date of mailing
Examples of postmark in a Sentence
Verb
The package was postmarked 13 February.
Recent Examples on the Web
Rashad Alexander, Kansas City Star, 22 Jan. 2026
That means mail-in ballots, tax payments, bills, legal documents and other things that depend on the postmark date could get a later one, even if it was mailed on time, and they could be rejected in places that could require it to be postmarked by a certain deadline.
—Evan Moore, Charlotte Observer, 16 Jan. 2026
Rachel Raposas, PEOPLE, 21 Jan. 2026
That means mail-in ballots, tax payments, bills, legal documents and other things that depend on the postmark date could get a later one, even if it was mailed on time, and they could be rejected in places that could require it to be postmarked by a certain deadline.
—Evan Moore, Charlotte Observer, 16 Jan. 2026
See All Example Sentences for postmark
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Noun
This means that the postmark date won’t necessarily match the date when the mail was dropped off at a retail location or collected by a letter carrier, USPS officials said.
—Rashad Alexander, Kansas City Star, 22 Jan. 2026
That means mail-in ballots, tax payments, bills, legal documents and other things that depend on the postmark date could get a later one, even if it was mailed on time, and they could be rejected in places that could require it to be postmarked by a certain deadline.
—Evan Moore, Charlotte Observer, 16 Jan. 2026
Verb
Then, the individual must display the key information (which appears after form submission) on a 3x5 postcard and postmark it no later than three days after the end of the entry period.
—Rachel Raposas, PEOPLE, 21 Jan. 2026
That means mail-in ballots, tax payments, bills, legal documents and other things that depend on the postmark date could get a later one, even if it was mailed on time, and they could be rejected in places that could require it to be postmarked by a certain deadline.
—Evan Moore, Charlotte Observer, 16 Jan. 2026
See All Example Sentences for postmark
Cite this Entry
“Postmark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/postmark. Accessed 28 Jan. 2026.
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