[ roof, roo f ]
/ ruf, rʊf /
noun, plural roofs.
the external upper covering of a house or other building.
a frame for supporting this: an open-timbered roof.
the highest part or summit: The Himalayas are the roof of the world.
something that in form or position resembles the roof of a house, as the top of a car, the upper part of the mouth, etc.
Mining. the rock immediately above a horizontal mineral deposit.
verb (used with object)
to provide or cover with a roof.
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Idioms for roof
- to increase beyond all expectations: Foreign travel may very well go through the roof next year.
- Also hit the roof,Informal. to lose one's temper; become extremely angry.
- to create a loud noise: The applause raised the roof.
- to complain or protest noisily: He'll raise the roof when he sees that bill.
go through the roof,
raise the roof, Informal.
Origin of roof
before 900; Middle English (noun); Old English hrōf; cognate with Dutch roef cover, cabin, Old Norse hrōf
OTHER WORDS FROM roof
roof·like, adjectivere·roof, verb (used with object)self-roofed, adjectiveun·der·roof, noun
Words nearby roof
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for hit the roof
/ (ruːf) /
noun plural roofs (ruːfs, ruːvz)
- a structure that covers or forms the top of a building
- (in combination)the rooftop
- (as modifier)a roof garden
the top covering of a vehicle, oven, or other structurethe roof of a car
anatomy any structure that covers an organ or partthe roof of the mouth
a highest or topmost point or partMount Everest is the roof of the world
a house or other sheltera poor man's roof
mountaineering the underside of a projecting overhang
hit the roof or go through the roof informal
- to get extremely angry; become furious
- to rise or increase steeply
raise the roof
- to create a boisterous disturbance
- to react or protest heatedly
(tr) to provide or cover with a roof or rooflike part
Derived forms of roofroofer, nounroofless, adjectiverooflike, adjective
Word Origin for roof
Old English hrōf; related to Middle Dutch, Old Norse hrōf
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for hit the roof
[ rōōf, ruf ]
The upper surface of an anatomical structure, especially one having a vaulted inner structure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Idioms and Phrases with hit the roof (1 of 2)
hit the roof
see hit the ceiling.
Idioms and Phrases with hit the roof (2 of 2)
In addition to the idiom beginning with roof
- roof over one's head, a
- go through the roof
- hit the ceiling (roof)
- like a cat on hot bricks (a hot tin roof)
- raise the roof
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.