- (adv.) While; whereas; although; -- used in the manner of a conjunction to introduce a dependent adverbial sentence or clause, having a causal, conditional or adversative relation to the principal proposition; as, he chose to turn highwayman when he might have continued an honest man; he removed the tree when it was the best in the grounds.
- (adv.) Which time; then; -- used elliptically as a noun.
- (adv.) At what time; at, during or after the time that; at or just after, the moment that; -- used relatively.
- (adv.) At what time; -- used interrogatively.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). when. Retrieved September 22, 2026, from http://smartdefine.org/when/definitions/2081599 |
| Chicago | Webster's. 2011. "when" http://smartdefine.org/when/definitions/2081599 (accessed September 22, 2026). |
| Harvard | Webster's 2011, when, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/when/definitions/2081599>. |
| MLA | Webster's. "when" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/when/definitions/2081599> |