'Babu' definitions:

Definition of 'babu'

(from WordNet)
noun
Used as a Hindi courtesy title; equivalent to English `Mr' [syn: babu, baboo]

Definition of 'Babu'

From: GCIDE
  • Baboo \Ba"boo\, Babu \Ba"bu\ (b[aum]"b[=oo]), n. [Hind. b[=a]b[=u].] A Hindu gentleman; a native clerk who writes English; also, a Hindu title equivalent to the English Mr. or Esquire. --Whitworth. [1913 Webster]