|—n , pl roofs|
|1.||a. a structure that covers or forms the top of a building|
|b. (in combination): the rooftop|
|c. (as modifier): a roof garden|
|2.||the top covering of a vehicle, oven, or other structure: the roof of a car|
|3.||anatomy any structure that covers an organ or part: the roof of the mouth|
|4.||a highest or topmost point or part: Mount Everest is the roof of the world|
|5.||a house or other shelter: a poor man's roof|
|6.||mountaineering the underside of a projecting overhang|
|7.||informal hit the roof, go through the roof|
|a. to get extremely angry; become furious|
|b. to rise or increase steeply|
|8.||raise the roof|
|a. to create a boisterous disturbance|
|b. to react or protest heatedly|
|9.||(tr) to provide or cover with a roof or rooflike part|
|[Old English hrōf; related to Middle Dutch, Old Norse hrōf]|
roof (rōōf, ruf)
The upper surface of an anatomical structure, especially one having a vaulted inner structure.
raise the roof
Be extremely noisy and boisterous, as in They'd had a lot to drink and were really raising the roof last night.
Complain loudly and angrily, as in When the landlord increased the rent, the tenants raised the roof about his lack of repairs and maintenance. Both usages convey the image of the roof being lifted because it cannot contain either noise or rage. [Slang; mid-1800s] Also see hit the ceiling.