cow

(noun): (properly) An adult female of the species Bos taurus, especially one that has calved.
(noun): (formerly inexact but now common) Any member of the species Bos taurus regardless of sex or age, including bulls and calves.
(noun): Beef: the meat of cattle as food.
(noun): Any bovines or bovids generally, including yaks, buffalo, etc.
(noun): A female member of other large species of mammal, including the bovines, moose, whales, seals, hippos, rhinos, manatees, and elephants.
(noun): A woman considered unpleasant in some way, particularly one considered nasty, stupid, fat, lazy, or difficult.
(noun): A chock: a wedge or brake used to stop a machine or car.