wit in WordNet English dictionary

1. mental ability
   "he's got plenty of brains but no common sense"
   brain  brainpower  learning ability  mental capacity  mentality  wit 
   
2. a witty amusing person who makes jokes
   wag  wit  card 
   
3. a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
   wit  humor  humour  witticism  wittiness