tit in WordNet English dictionary

1. either of two soft fleshy milk-secreting glandular organs on the chest of a woman
   breast  bosom  knocker  boob  tit  titty 
   
2. the small projection of a mammary gland
   nipple  mammilla  mamilla  pap  teat  tit 
   
3. small insectivorous birds
   titmouse  tit