| When 1. (adv.) At what time; -- used interrogatively. 2. (adv.) At what time; at, during, or after the time that; at or just after, the moment that; -- used relatively. 3. (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. 4. (adv.) Which time; then; -- used elliptically as a noun. Thesaurus Entries after all, again, albeit, all the same, although, anon, as far as, as long as, at all events, at any rate, at what time, at which, at which time, but, during which time, even, even so, for all that, howbeit, however, in any case, in any event, in what period, in which time, just the same, nevertheless, nonetheless, notwithstanding, on what occasion, on which occasion, rather, still, the while, though, upon which, what time, when as, whenever, whereas, whereupon, while, whilst, yet |