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.

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