Learn how to say Cows correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word cow:
the mature female of domestic cattle (genus Bos), valued for its milk
the mature female of certain other mammals, as the buffalo, elephant, moose, whale, etc. (the male of such animals is called a bull)
(US & Western US) a domestic bovine animal, whether a steer, bull, cow, or calf (usually used in pl.)