be owned by; be in the possession of; "This book belongs to me"
be classified with; "The whales belong among the mammals"
be suitable or acceptable; "This student somehow doesn't belong"
be in the right place or situation; "Where do these books belong?"; "Let's put health care where it belongs--under the control of the government"; "Where do these books go?"
that time; that moment; "we will arrive before then"; "we were friends from then on"
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"
at that time; "I was young then"; "prices were lower back then"; "science as it was then taught"
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"