noun
- A cancellation mark stamped on mail by postal officials; indicates the post office and date of mailing.
verb
- Stamp with a postmark to indicate date and time of mailing.
- synonyms: frank
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). postmark. Retrieved September 20, 2026, from http://smartdefine.org/postmark/definitions/1219423 |
| Chicago | WordNet. 2010. "postmark" http://smartdefine.org/postmark/definitions/1219423 (accessed September 20, 2026). |
| Harvard | WordNet 2010, postmark, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/postmark/definitions/1219423>. |
| MLA | WordNet. "postmark" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/postmark/definitions/1219423> |