Definition of uncle
- was forced to cry uncle
I have three uncles and two aunts.
My Uncle David is visiting next week.
: the brother of your father or mother or the husband of your aunt
—used as a word that you say when you are being hurt in a fight to show that you admit being defeated and do not want to continue fighting
What made you want to look up uncle? Please tell us where you read or heard it (including the quote, if possible).