/ ˈkʌzn; NAmE / noun
1.
(also ˌfirst ˈcousin ) a child of your aunt or uncle :
She's my cousin.
We're cousins.
—see also country cousin , second cousin
2.
a person who is in your wider family but who is not closely related to you :
He's a distant cousin of mine.
3.
[ usually pl. ] a way of describing people from another country who are similar in some way to people in your own country :
our American cousins
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WORD ORIGIN
Middle English : from Old French cosin , from Latin consobrinus mother's sister's child, from con- with + sobrinus second cousin (from soror sister).