Date: 1200-1300
Language: Old French
Origin: Latin avunculus 'mother's brother'


un‧cle [countable]
1SSF the brother of your mother or father, or the husband of your aunt [↪ aunt]:
I went to stay with my uncle and aunt for a few days.
Uncle Philip
I was very excited about becoming an uncle (=your sister or your brother's wife has a child).
2SS used by children, in front of a first name, to address or refer to a man who is a close friend of their parents

say uncle

American English spoken used by children to tell someone to admit they have been defeated

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