— rooflike , adj.
/roohf, roof/ , n. , pl. roofs , v.
n.
1. the external upper covering of a house or other building.
2. a frame for supporting this: an open-timbered roof.
3. the highest part or summit: The Himalayas are the roof of the world.
4. 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.
5. a house.
6. Mining. the rock immediately above a horizontal mineral deposit.
7. go through the roof ,
a. to increase beyond all expectations: Foreign travel may very well go through the roof next year.
b. Also, hit the roof , Informal. to lose one's temper; become extremely angry.
8. raise the roof , Informal.
a. to create a loud noise: The applause raised the roof.
b. to complain or protest noisily: He'll raise the roof when he sees that bill.
v.t.
9. to provide or cover with a roof.
[ bef. 900; ME (n.); OE hrof; c. D roef cover, cabin, ON hrof ]