- the outside top covering of a building
- figuratively, a house or home
- the top or peak of anything: the roof of the world
- anything like a roof in position or use: the roof of the mouth
Origin of roofMiddle English rof from Old English hrof, akin to ON, roof, shed from Indo-European base an unverified form ?rapo- from source Old Church Slavonic strop?, roof
hit the roof
Origin of rooffig., as if one were propelled upward by the explosion of anger
raise the roofSlang
- to be very noisy, as in applause, anger, celebration, etc.
- to complain loudly
through the roof
- a. The exterior surface and its supporting structures on the top of a building.b. The upper exterior surface of a dwelling as a symbol of the home itself: three generations living under one roof.
- The top covering of something: the roof of a car.
- The upper surface of an anatomical structure, especially one having a vaulted inner structure: the roof of the mouth.
- The highest point or limit; the summit or ceiling: A roof on prices is needed to keep our customers happy.
transitive verbroofed, roof·ing, roofs
Origin of roofMiddle English from Old English hrōf
(plural roofs or rooves)
- The plural rooves is uncommon and is usually considered incorrect, though it is parallel to more common plurals like hooves and staves.
- In referring to the top of a building, refers both to the object itself (“the roof was blown off in the tornado") and to the location of being on the roof (“it can be dangerous to go on the roof to fix the antenna"). In the later sense (of “location") it is often used attributively, largely interchangeably with rooftop.
(third-person singular simple present roofs, present participle roofing, simple past and past participle roofed)
From Middle English rof, from Old English hrÅf (“roof, ceiling; top, summit; heaven, sky"), from Proto-Germanic *hrÅfÄ… (“roof"), from Proto-Indo-European *krÄpo- (“roof"), from Proto-Indo-European *krÄwÇ- (“to cover, heap"). Cognate with Scots ruif (“roof"), Dutch roef (“a cabin, wooden cover, deckhouse"), Low German rof (“roof"), Icelandic hrÃ³f (“a shed under which ships are built or kept, roof of a boathouse").
From Mandarin Chinese å±å®¿ (WÄ“ixiÃ¹)