Entry 2 senses Webster, 1913 Fisher /fĭsh'-ẽr/ · Fish·er · IPA /ˈfɪʃɚ/ 01 n. One who fishes. 1. One who fishes. 2. A carnivorous animal of the Weasel family (Mustela Canadensis); the pekan; the “black cat.”(Zool.)