'Milliard' definitions:

Definition of 'milliard'

(from WordNet)
noun
A billion; "in England they call one thousand million a milliard"

Definition of 'Milliard'

From: GCIDE
  • Milliard \Mil`liard"\ (F. m[-e]l`y[.a]r"; E. m[i^]l"l[i^]*[aum]rd), n. [F., from mille, mil, thousand, L. mille.] A thousand millions; -- usually called billion in the United States. See Billion. [1913 Webster]