then in WordNet English dictionary

1. 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"
   then  so  and so  and then  then  so  and so  and then 
   
2. at that time
   "I was young then"; "prices were lower back then"; "science as it was then taught"
   then  then 
   
3. 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"
   then  then 
   

1. that time; that moment
   "we will arrive before then"; "we were friends from then on"
   then 
   

1. at a specific prior time
   "the then president"
   then