(1):

(n.) One who slaughters animals, or dresses their flesh for market; one whose occupation it is to kill animals for food.

(2):

(n.) A slaughterer; one who kills in large numbers, or with unusual cruelty; one who causes needless loss of life, as in battle.

(3):

(v. t.) To kill or slaughter (animals) for food, or for market; as, to butcher hogs.

(4):

(v. t.) To murder, or kill, especially in an unusually bloody or barbarous manner.