postmark

postmark is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.The mark, or stamp, of a post office on a letter, giving the place and date of mailing or of arrival.
  2. 2.To mark with a post-office stamp; as, to postmark a letter or parcel.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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