adjective
- Vigilant.
- usage: "on guard against con artists"; "must remain on your guard in such a situation"
- synonyms: on guard, upon one's guard, on your guard
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). on one's guard. Retrieved September 26, 2026, from http://smartdefine.org/on_one%27s_guard/definitions/1179797 |
| Chicago | WordNet. 2010. "on one's guard" http://smartdefine.org/on_one%27s_guard/definitions/1179797 (accessed September 26, 2026). |
| Harvard | WordNet 2010, on one's guard, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/on_one%27s_guard/definitions/1179797>. |
| MLA | WordNet. "on one's guard" 23 October 2010. Web. 26 September 2026. <http://smartdefine.org/on_one%27s_guard/definitions/1179797> |