Knocker

مترادف و متضاد knocker

1. noun One who disparages or belittles the worth of something
   Synonyms: detractor, disparager, depreciator
2. noun Either of two soft fleshy milk-secreting glandular organs on the chest of a woman
   Synonyms: breast, bosom, boob, tit
3. noun A device (usually metal and ornamental) attached by a hinge to a door
   Synonyms: doorknocker, rapper