bunkkeri

Etymology
Borrowed from.

Noun

 * 1)  bunker hardened shelter, often buried partly or fully underground, designed to protect the inhabitants from falling bombs or other attacks
 * 2)  bunker container for storing coal or fuel oil for a ship's engine
 * 3)  bunker sand-filled hollow on a golf course
 * 4) blockhouse reinforced building from which to control hazardous operations