- (v.i./auxiliary) To be obliged; to be necessitated; -- expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to the laws.
- (n.) Mustiness.
- (n.) The expressed juice of the grape or other fruit, before fermentation.
- (v.t.&i.) To make musty; to become musty.
- (v.i./auxiliary) To be morally required; to be necessary or essential to a certain quality, character, end or result; as, he must reconsider the matter; he must have been insane.
- (n.) The condition of frenzy.
- (n.) An elephant in must.
- (n.) Being in a condition of dangerous frenzy, usually connected with sexual excitement; -- said of adult male elephants which become so at irregular intervals.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). must. Retrieved September 23, 2026, from http://smartdefine.org/must/definitions/2035420 |
| Chicago | Webster's. 2011. "must" http://smartdefine.org/must/definitions/2035420 (accessed September 23, 2026). |
| Harvard | Webster's 2011, must, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/must/definitions/2035420>. |
| MLA | Webster's. "must" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/must/definitions/2035420> |