Postmark
Postmark verb - Stamp with a postmark to indicate date and time of mailing.
Validate and postmark are semantically related. In some cases you can use "Validate" instead a verb "Postmark".
Nearby Words: postmarked, postmarking
Mutual synonyms
Cite this Source
Validate and Postmark. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/postmark/validate
Postmark & Validate. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/postmark/validate>.
Validate or Postmark. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/postmark/validate.
Google Ngram Viewer shows how "postmark" and "validate" have occurred on timeline