bunk
1 Americannoun
-
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
-
short for bunk bed
-
informal any place where one sleeps
verb
-
to prepare to sleep
he bunked down on the floor
-
(intr) to occupy a bunk or bed
-
(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
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Sunrise Over Fallujah
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
The End of the Wild
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
As the flames spread, blocking the exits for those crowded in the bunk room below, a member of Boylan’s crew twice ran right by a 50-foot fire hose overhead, trial evidence showed.
From Los Angeles Times • Mar. 3, 2026
Found unresponsive in his bunk, his death was ruled due to hypertensive and cardiovascular disease.
From Salon • Feb. 20, 2026
As we perch on the top bunk of the carriage where he is sitting with another friend, Stas is frank about the impact of the war on his generation.
From BBC • Jan. 14, 2026
Second, the debate about the quantity vs. the quality of time we spend with our kids is bunk, to use the cleaned-up version of a word my mother liked.
From The Wall Street Journal • Dec. 19, 2025
And she turned and ran back down into her cabin, down to her bunk.
From "Impossible Creatures" by Katherine Rundell
![]()
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.