1.  fisher(n = noun.person) fisherman - someone whose occupation is catching fish;
is a kind of skilled worker, skilled workman, trained worker
has particulars: angler, troller, trawler
Derived form verb fish₂

2.  fisher(n = noun.animal) black cat, fisher cat, martes pennanti, pekan - large dark brown North American arboreal carnivorous mammal;
is a kind of marten, marten cat

1.  One who fishes. [1913 Webster]

2.  A carnivorous animal of the Weasel family (Mustela Canadensis); the pekan; the “black cat.” [1913 Webster]

fisher, n.
1 an animal that catches fish, esp. a pekan.
2 archaic a fisherman.

Etymology:
OE fiscere f. Gmc (as FISH(1))

fisher cat