/bʌŋk; bʌŋk/
n
1 narrow bed built into a wall like a shelf, eg on a ship （架设于壁上的）狭窄铺位（如于船上的）.
2 (also `bunk bed) one of a pair of single beds, fixed one above the other, esp for children 双层床的上铺或下铺（尤指儿童所用的）. =>illus at App
1 见附录1之插图, page xvi.

/bʌŋk; bʌŋk/
n (idm 习语) do a `bunk (Brit infml 口) run away 逃走
*The cashier has done a bunk with the day's takings. 出纳员携带该日营业收入逃走了.

/bʌŋk; bʌŋk/
n [U] (infml 口) = bunkum
*Don't talk bunk! 别胡说!