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Meaning of banco

ban•co

Pronunciation: (bang'kō, bäng'-), [key]
— n., pl. v. -cos,
—n.
  1. a declaration made by a bettor in certain gambling games, as baccarat and chemin de fer, indicating a bet matching the full amount in the bank, to the exclusion of all previous lower bets: often used as an interjection.
—v.i.
  1. to make such a declaration.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.