1
- a person who manages or owns a bank or group of banks银行家。
1.1
- the person running the table, controlling play, or acting as dealer in some gambling or board games（赌博或棋戏中的）庄家。
2
- Brit. a supposedly certain bet〈英〉稳赢的赌注：
the horse should be a banker for him in the Members' race.
那匹马应该使他在成员赛中稳操胜券。
2.1
- a result forecast identically (while other forecasts differ) in several football-pool entries on one coupon（一张足球彩票上）与实战结果相符的预测。
词源
mid 16th cent.: from French banquier, from banque （see BANK）.