adjective
- Vigilant.
- usage: "on guard against con artists"; "must remain on your guard in such a situation"
- synonyms: on one's guard, upon one's guard, on your guard
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). on guard. Retrieved September 20, 2026, from http://smartdefine.org/on_guard/definitions/1179795 |
| Chicago | WordNet. 2010. "on guard" http://smartdefine.org/on_guard/definitions/1179795 (accessed September 20, 2026). |
| Harvard | WordNet 2010, on guard, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/on_guard/definitions/1179795>. |
| MLA | WordNet. "on guard" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/on_guard/definitions/1179795> |