banker

Concise Oxford English Dictionary © 2008 Oxford University Press:
banker1

▶noun

• 1 a person who manages or owns a bank or group of banks.

  ■ the person running the table, controlling play, or acting as dealer in some gambling or board games.

• 2 Brit. a supposedly certain bet.

  ■ a result forecast identically (while other forecasts differ) in several football-pool entries on one coupon.

– origin C16: from Fr. banquier, from banque (see bank2).

Concise Oxford English Dictionary © 2008 Oxford University Press:
banker2

▶noun Austral./NZ informal a river flooded to the top of its banks.