Bun"ker (&?;), n. [Scot. bunker, bunkart, a bench, or low chest, serving for a seat. Cf. Bunk, Bank, Bench.]

1. A sort of chest or box, as in a window, the lid of which serves for a seat. [Scot.] Jamieson.

2. A large bin or similar receptacle; as, a coal bunker.

Bun"ker (?), n. 1. A small sand hole or pit, as on a golf course. [Scot.] Sir W. Scott.

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

Bun"ker, v. t. (Golf) To drive (the ball) into a bunker.

Bun"ker (?), n. 1. A small sand hole or pit, as on a golf course. [Scot.] Sir W. Scott.

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

Bun"ker, v. t. (Golf) To drive (the ball) into a bunker.

• A hardened shelter, often buried partly or fully underground, designed to protect the inhabitants from falling bombs or other attacks.
  
• A sand-filled hollow on a golf course.
  
• In paintball, to constantly fire at an opponent behind an object, even when the opponent cannot be seen, preventing him from firing at other players and trapping him behind the barrier. This can also refer to eliminating an opponent behind cover by rushing the position and firing at extremely close range as the player becomes exposed.