- [countable]
a narrow bed that is fixed to a wall, especially on a ship or train （尤指船或火车的）卧铺 - [countable] (also bunk bed)
one of two beds that are fixed together, one above the other, especially for children （尤指儿童的）双层床，架子床；上铺；下铺 
I slept in the bottom bunk of a set of bunk beds. 我睡在一张双层床的下铺。
- [uncountable] (old-fashioned, informal)
ideas, statements or beliefs that you think are silly or not true synonym bunkum, nonsense
Word Originnoun senses 1 to 2 mid 18th cent.: of unknown origin; perhaps related to bunker. noun sense 3 early 20th cent.: abbreviation of bunkum.
Idioms
do a bunk
- (British English, informal)
to run away from a place without telling anyone 溜走；悄悄离开