then: subsequently or soon afterward (often used as sentence connectors); "then he left"; "go left first, then right"; "first came lightning, then thunder"; "we watched the late movie and then went to bed"; "and so home and to bed"
in that case or as a consequence; "if he didn't take it, then who did?"; "keep it then if you want to"; "the case, then, is closed"; "you've made up your mind then?"; "then you'll be rich"
at that time; "I was young then"; "prices were lower back then"; "science as it was then taught"
that time; that moment; "we will arrive before then"; "we were friends from then on"
then(a): at a specific prior time; "the then president"
than: introduces a comparison, and is associated with comparatives