Толковый словарь английского языка Oxford English Reference - bunker

n. & v. --n. 1 a large container or compartment for storing fuel. 2 a reinforced underground shelter, esp. for use in wartime. 3 a hollow filled with sand, used as an obstacle in a golf-course. --v.tr. 1 fill the fuel bunkers of (a ship etc.). 2 (usu. in passive) a trap in a bunker (in sense 3). b bring into difficulties. Etymology: 19th c.: orig. unkn.