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Webster's Dictionary (1865)

2 entries under this word

Postmark

Pŏst'märk, n.

noun

n. The mark, or stamp, of a post-office on a letter.

Pōst'märk, v. t.

verbtransitive

v. t. [imp. & p. p. POSTMARKED (pōst'-märkt); p. pr. & vb. n. POSTMARKING.] To mark with a post-office stamp.