Did you mean "cozen" To cozen - to trick or deceive. It's not really used in normal speech but you may see it in books.

Do you mean "cousins"? A cousin is a child of an aunt or uncle.

Hi Mohamed, I'm not sure, but my guess is that you mean the word "cousins"? Your cousin is your uncle or your aunty's children. Another way to say it is that they are your parent's sibling's children. Hope that helps. Alice

It's always helpful if you provide the sentence and the context where you heard or read the word.