noun
- An additional telephone set that is connected to the same telephone line.
- synonyms: extension, telephone extension
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). extension phone. Retrieved September 21, 2026, from http://smartdefine.org/extension_phone/definitions/1274208 |
| Chicago | WordNet. 2010. "extension phone" http://smartdefine.org/extension_phone/definitions/1274208 (accessed September 21, 2026). |
| Harvard | WordNet 2010, extension phone, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/extension_phone/definitions/1274208>. |
| MLA | WordNet. "extension phone" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/extension_phone/definitions/1274208> |