Bŭnk1, n.
n. [Sw. bunke, a wooden vessel, tub, coop, O. Eng. bung, pocket, purse, A-S. bune, a sort of cup. See BUNG.]
Sense 1. A wooden case or box, which serves for a seat in the day-time and for a bed at night; one of a series of berths or bed-places arranged in vertical tiers. [U. S.]
Sense 2. A piece of wood placed on a lumberman's sled to sustain the end of heavy timbers. [U. S.] Bartlett.