noun
- A numbered compartment in a post office where mail is put to be called for.
- synonyms: PO Box, POB, call box, letter box
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Post-Office box. Retrieved September 21, 2026, from http://smartdefine.org/post-office_box/definitions/1323002 |
| Chicago | WordNet. 2010. "Post-Office box" http://smartdefine.org/post-office_box/definitions/1323002 (accessed September 21, 2026). |
| Harvard | WordNet 2010, Post-Office box, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/post-office_box/definitions/1323002>. |
| MLA | WordNet. "Post-Office box" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/post-office_box/definitions/1323002> |