1. a stupid person; these words are used to express a low opinion of someone's intelligence

Similar word(s): blockhead, bonehead, dunce, dunderhead, knucklehead, loggerhead, lunkhead, muttonhead, numskull

Definition categories: person, dolt, dullard, pillock, stupe, stupid

2. the striking part of a hammer

Definition categories: man–made, head

3. medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous

Definition categories: animal, shark