postmark

1 of 2

noun

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

postmark

2 of 2

verb

postmarked; postmarking; postmarks

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

Ballot delivery delays tied to Postal Service processing changes led California to reject nearly 150,000 primary ballots and left hundreds uncounted in Wisconsin, raising alarms about postmarks and on-time mail service. — John Hanna, Los Angeles Times, 29 July 2026

Stamp aficionados can send a request to the Stamp Fulfillment Services office in Kansas City, Missouri, via mail within 30 days of the stamp’s issuing date to receive the unique postmark. — Camila Pedrosa, Sacbee.com, 17 July 2026

Verb

Kansas for years has allowed election officials to collect mail ballots for three days after the election as long as they were postmarked by Election Day. — Cuyler Dunn, Kansas City Star, 31 July 2026

The court also ruled against a Republican effort to stop states from counting mail-in ballots that are postmarked by Election Day but received later. — Emily R. Condon, USA Today, 30 July 2026

Word History

First Known Use

Noun

1678, in the meaning defined above

Verb

1716, in the meaning defined above

Rhymes for postmark

• ballpark
• benchmark
• birthmark
• daymark
• earmark
• embark
• hallmark
• landmark
• monarch
• remark
• skylark
• tetrarch

Kids Definition

postmark

noun

post·​mark

-ˌmärk

: a mark canceling the postage stamp on a piece of mail and giving the date and place of sending

postmark verb