a brother of one's father or mother.
a familiar title or term of address for any elderly man.
(initial capital letter) Informal. Uncle Sam.
a word formerly used in communications to represent the letter U.
1250–1300; Middle English
< Anglo-French uncle, Old French oncle
< Latin avunculus
mother's brother, equivalent to av
) mother's father + -unculus
suffix extracted from diminutives of n-stems (see homunculus
uncleless, adjectiveuncleship, noun