noun
- An envelope with a transparent panel that reveals the address on the enclosure. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). window envelope. Retrieved September 23, 2026, from http://smartdefine.org/window_envelope/definitions/1209690 |
| Chicago | WordNet. 2010. "window envelope" http://smartdefine.org/window_envelope/definitions/1209690 (accessed September 23, 2026). |
| Harvard | WordNet 2010, window envelope, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/window_envelope/definitions/1209690>. |
| MLA | WordNet. "window envelope" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/window_envelope/definitions/1209690> |