D defs.my
Entry 3 senses Webster, 1913

Uncle

/ŭngʹkəl/ · Un·cle · IPA /ˈʌŋ.kl̩/
01 n. The brother of one's father or mother; also applied to an aunt's husband; -- the correlative of aunt in sex, and of nephew and niece in rel…
  1. 1.
    The brother of one's father or mother; also applied to an aunt's husband; -- the correlative of aunt in sex, and of nephew and niece in relationship.
  2. 2.
    A pawnbroker.[Slang]
  3. 3.
    An eldery man; -- used chiefly as a kindly or familiar appellation, esp. (Southern U. S.) for a worthy old negro; as, “Uncle Remus.”(Southern U. S.)
    “Plain old uncle as he [Socrates] was, with his great ears, -- an immense talker.” Emerson.
Phrases & compounds
My uncle — a pawnbroker.
Uncle Sam — a humorous appellation given to the United States Government. See Uncle Sam, in Dictionary of Noted Names in Fiction.