bunk
1 Americannoun
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a built-in platform bed, as on a ship.
-
Informal. any bed.
-
a cabin used for sleeping quarters, as in a summer camp; bunkhouse.
-
a trough for feeding cattle.
verb (used without object)
verb (used with object)
noun
verb (used with or without object)
verb (used with object)
verb (used without object)
idioms
noun
-
a narrow shelflike bed fixed along a wall
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short for bunk bed
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informal any place where one sleeps
verb
-
to prepare to sleep
he bunked down on the floor
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(intr) to occupy a bunk or bed
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(tr) to provide with a bunk or bed
noun
verb
noun
Etymology
Origin of bunk1
First recorded in 1750–60; back formation from bunker
Origin of bunk2
An Americanism dating back to 1895–1900; short for bunkum
Origin of bunk3
Perhaps expressive alteration of bump
Origin of bunk4
First recorded in 1865–70; perhaps special use of bunk 1
Explanation
A bunk is a bed that's built above another bed. Twin sisters might argue nightly over who gets the top bunk. You might find a bunk bed in a child's bedroom or a train's sleeper car. Sometimes the rough bed in a rustic cabin is also called a bunk — and you could say, "I'll bunk in the cabin tonight." Informally, bunk is also nonsense: "How can you believe that bunk?" The bed meaning is short for bunker, while the "foolishness" definition is from bunkum, named for a politician's long, dull speech in 1820, in Buncombe, North Carolina.
Vocabulary lists containing bunk
The Radium Girls
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Sunrise Over Fallujah
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The End of the Wild
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Bunk beds are jammed into a room at the Albergue Vida shelter in Juárez because the shelter once accommodated scores of migrants each month.
From Los Angeles Times • Jul. 27, 2025
She sings in the indie music duo Bunk Buddy and acted in the A24 film “I Saw the TV Glow,” set to be released in May.
From New York Times • Mar. 19, 2024
Bunk beds were the obvious sign of the doubled capacity which concerned many opponents of the plan, and fire safety experts.
From BBC • Oct. 19, 2023
Even the long-heralded objective measure of sheets — thread count — does not reliably reflect quality these days, says Laura Fenton, author of “The Bunk Bed Book.”
From Washington Post • Jan. 18, 2023
He pretended to be deep in thought before exclaiming, “I’ve got it! Bunk beds. They’ll save us space and give the place a youthful atmosphere.”
From "Anger Is a Gift" by Mark Oshiro
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.