Wiktionary
n. Two or more beds fixed on top of one another, so that one person can sleep in each bunk at a different height.
WordNet
n. beds built one above the other [syn: bunk]
Wikipedia
A bunk bed is a type of bed in which one bed frame is stacked on top of another. No box spring is required as the mattress lies on a flat surface, the bunkie (or bunky) board, and may be surrounded by rails. The nature of bunk beds allows two or more people to sleep in the same room while maximizing available floor space for activities. This leads to them being used in places with limited floor space, such as on ships and in army garrisons or in places where floorspace needs to be maximized, such as dormitories, summer camp cabins, hostels, children's rooms, prison cells, or university residence halls.
Bunk beds are normally supported by four poles or pillars, one at each corner of the bed. A ladder is used to get to the upper bed, which is normally surrounded by a railing to prevent the sleeper from falling out. Some models also have a privacy curtain for the lower bunk. Because of the need for a ladder and the height of the bed, the top bunk of a bunk bed is not recommended for children under six years of age.
A loft bed is an elevated bed similar to a bunk bed, but without the lower beds - freeing floor space for other furniture (such as a desk) which might be built into the loft bed.
Usage examples of "bunk bed".
Li got to his feet from behind the desk that had been shoe-horned in between the bunk bed and the sloping curve of the outer wall.
And if you wake up to the sound of somebody banging two metal pots together, and find yourself in a small bunk bed, with a nasty foreman standing in the doorway holding no breakfast at all, you will know that your day will be horrid.
Sir had already made the three Baudelaires sleep in one small bunk bed.
A creaky three-decker bunk bed had been carried onto the verandah for their comfort.
Instead, he picked up the hammer and drove a couple of nails into the frame of the bunk bed on which he and Mikhailov were working.
He shoved aside an old armchair and lowered Ron carefully onto the lower berth of a bunk bed.
I woke up Dawn, who was sleeping in the bottom of the other bunk bed.
The bullet chipped a divot out of the pole of a bunk bed, showing the raw pinewood within.
Vandals had broken in and completely smashed one bunk bed and our shower fitting.