Definitions from Wiktionary ( )

▸ noun:  (military) A hardened shelter, often partly buried or fully underground, designed to protect the inhabitants from falling bombs or other attacks.
▸ noun:  (nautical) A compartment for storing coal for the ship's boilers; or a tank for storing fuel oil for the ship's engines.
▸ noun:  (rail transport) The coal compartment on a tank engine.
▸ noun:  (sports)
▸ noun:  (golf) A hazard on a golf course consisting of a sand-filled hollow.
▸ noun:  (paintball) An obstacle used to block an opposing player's view and field of fire.
▸ noun:  (British, chiefly historical) A large bin or container for storing coal, often built outdoors in the yard of a house.
▸ noun:  (Scotland)
▸ noun:  A sort of box or chest, as in a window, the lid of which serves as a seat.
▸ noun:  (slang) A kitchen worktop.
▸ verb:  (nautical)
▸ verb:  (transitive) To load (a vessel) with coal or fuel oil for the engine.
▸ verb:  (intransitive, of a vessel) To take a load of coal or fuel oil for its engine.
▸ verb:  (transitive, Nigeria) To steal bunker fuel by illicitly siphoning it off.
▸ verb:  (transitive, golf) To hit (a golf ball) into a bunker; (chiefly passive voice) to place (a golfer) in the position of having a golf ball in a bunker.
▸ verb:  (idiomatic, UK, informal) To place (someone) in a position that is difficult to get out of; to hinder.
▸ verb:  (transitive, paintball) To fire constantly at (an opponent hiding behind an obstacle), trapping them and preventing them from firing at other players; also, to eliminate (an opponent behind an obstacle) by rushing to the position and firing at extremely close range as the player becomes exposed.
▸ verb:  (intransitive) Often followed by down: to take shelter in a bunker or other place.
▸ noun:  (British, slang) One who bunks off; a truant from school.
▸ noun:  (US, regional) The menhaden, any of several species of fish in the genera Brevoortia and Ethmidium.
▸ noun:  A surname.

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