upstairs
Americanadverb
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up the stairs; to or on an upper floor.
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Informal. in the mind.
to be a little weak upstairs.
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to or at a higher level of authority.
You may have to take the matter upstairs.
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Military Slang. at or to a higher level in the air.
adjective
noun
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upstairs
plural
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(usually used with a singular verb) an upper story or stories; the part of a building or house that is above the ground floor.
The upstairs of this house is entirely rented.
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a higher command or level of authority.
We can't take action till we have approval from upstairs.
idioms
adverb
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up the stairs; to or on an upper floor or level
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informal to or into a higher rank or office
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informal in the mind
a little weak upstairs
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informal to promote to a higher rank or position, esp one that carries less power
noun
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an upper floor or level
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( as modifier )
an upstairs room
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informal the masters and mistresses of a household collectively, esp of a large house Compare downstairs
Other Word Forms
Noun Inflected Forms
Etymology
Origin of upstairs
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.
He debuted the offbeat experimental musical in fishnets and pearls in 1973 on the tiny stage upstairs at the Royal Court Theater in London, where it first became an underground sensation.
From Los Angeles Times ● Aug. 26, 2026
Kitaj is the most melancholy of all the likenesses, and the only one that Ashbery did not tuck away but placed against a fireplace in an upstairs sitting room.
From The Wall Street Journal ● Aug. 24, 2026
Ask the woman upstairs if she lost cash.
From MarketWatch ● Aug. 11, 2026
"He walked into the hotel and told the receptionist that his girlfriend was upstairs having a seizure. He asked what room I was in and what floor I was staying on," she said.
From BBC ● Aug. 10, 2026
“Yes. He’s upstairs, dealing with a room service mishap. They’re a bit short-staffed here.”
From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin
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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.