banker

noun12

1. •
   One who conducts the business of banking; one who, individually, or as a member of a company, keeps an establishment for the deposit or loan of money, or for traffic in money, bills of exchange, etc.

   • I have a good banker in this city, but I would not wish to draw upon the house until the time when I shall draw for a round sum. — 1855
2. •
   (UK) A bet that is almost certain to succeed.
3. •
   (UK) A very safe option.

   • When Jose came to Manchester United, two and a half years ago, this was the no-brainer, the banker, the one which couldn't fail. The one who had never failed. — 2018
4. •
   The dealer in a casino, or one who keeps the bank in a banking game.
5. •
   (UK, Australia) A railway locomotive that can be attached to the rear of a train to assist it in climbing an incline.

   • Between them these engines work passenger trains on the Keith line, and also act as bankers up to Dava when required. — 1944
6. •
   A type of envelope with a diamond shape or V-flap that opens on the long edge.
7. •
   A vessel employed in the cod fishery on the banks of Newfoundland.

   • May 20 1815, John Quincy Adams, letter to a merchant I think the 584 Bankers may be put down 36,540 tons, navigated by 4,627 men and boys
8. •
   The stone bench on which a mason cuts or squares his work.

   • [T]he new traceries, mullions, transoms, shafts, pinnacles, and battlements standing on the bankers half worked[.] — 1895
9. •
   (Australia, informal) A watercourse filled from bank to bank.
10. •
    (dialect, UK) A ditcher; a drain digger.

    • But this was no storm, the bankers could have told him. It was break of the year. — 1941
11. •
    Synonym of browman.
12. •
    (no longer used) A money changer.

noun2

1. •
   A native or resident of the Outer Banks of North Carolina.
2. •
   A Banker horse, a feral horse from the islands of North Carolina's Outer Banks.