(1):

(v. t.) To drive (the ball) into a bunker.

(2):

(n.) Hence, any rough hazardous ground on the links; also, an artificial hazard with built-up faces.

(3):

(n.) A small sand hole or pit, as on a golf course.

(4):

(n.) A large bin or similar receptacle; as, a coal bunker.

(5):

(n.) A sort of chest or box, as in a window, the lid of which serves for a seat.