Uncle - Wikipedia An uncle is usually defined as a male relative who is a sibling of a parent or married to a sibling of a parent, as well as the parent of the cousins Uncles who are related by birth are second-degree relatives
UNCLE definition and meaning | Collins English Dictionary Someone's uncle is the brother of their mother or father, or the husband of their aunt My uncle was the mayor of Memphis A text from Uncle Fred arrived Uncle, pa wants to see you