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postmarks

  • plural
    of postmark.
    postmark
    noun
    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.
  • present tense form
    of postmark (3rd person singular).
    postmark
    noun
    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.

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.

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Because California postmarks mail-in ballots up to Election Day and allows them a full week to arrive to ensure every single vote — including overseas military personnel — is counted, the process takes time.

From Salon Jun. 6, 2026

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

Voting in Tuesday’s election remains open Monday and Tuesday, with voting centers closing Tuesday at 8 p.m., and mail-in ballots requiring postmarks of Tuesday or earlier.

From Los Angeles Times Nov. 7, 2022

Weeks passed at Mrs. Sen’s before he found a blue aerogram, grainy to the touch, crammed with stamps showing a bald man at a spinning wheel, and blackened by postmarks.

From "Interpreter of Maladies" by Jhumpa Lahiri