then / [voicedth]en/ • adv. 1. at that time; at the time in question: I was living in Cairo then| [after prep.] Phoebe by then was exhausted | [as adj.] a hotel where the then prime minister, Margaret Thatcher, was staying. 2. after that; next; afterward: she won the first and then the second game. ∎ also; in addition: I'm paid a generous salary, and then there's the money I've made at the races. 3. in that case; therefore: if you do what I tell you, then there's nothing to worry about well, that's okay then. ∎ used at the end of a sentence to emphasize an inference being drawn: so you're still here, then. ∎ used to finish off a conversation: see you in an hour, then. PHRASES: but then (again) after all; on the other hand (introducing a contrasting comment): it couldn't help, but then again, it probably couldn't hurt. then and there immediately: she made up her mind then and there.