roof NOUN (pl. roofs) 1) the structure forming the upper covering of a building or vehicle. 2) the top inner surface of a covered area or space. 3) the upper limit or level of prices or wages.
VERB (usu. be roofed) cover with or as a roof.
go through the roof — Cf. ↑go through the roof
hit (or go through) the roof — Cf. ↑go through the roof
DERIVATIVES roofless adjective.
ORIGIN Old English.

English terms dictionary. 2015.

(of a house or of a building), (with a roof) / , , , , , / /