n. - A sort of chest or box, as in a window, the lid of which serves for a seat.
n. - A large bin or similar receptacle; as, a coal bunker.
n. - A small sand hole or pit, as on a golf course.
n. - Hence, any rough hazardous ground on the links; also, an artificial hazard with built-up faces.
v. t. - To drive (the ball) into a bunker.