postmark Meaning, Definition & Usage

  1. noun a cancellation mark stamped on mail by postal officials; indicates the post office and date of mailing
  2. verb stamp with a postmark to indicate date and time of mailing
    frank.

WordNet

Post"mark` noun
Definitions
  1. The mark, or stamp, of a post office on a letter, giving the place and date of mailing or of arrival.
Post"mark` transitive verb
Wordforms
imperfect & past participle Postmarked ; present participle & verbal noun Postmarking
Definitions
  1. To mark with a post-office stamp; as, to postmark a letter or parcel.

Webster 1913