[ruːf], (Noun)

Definitions:
- the structure forming the upper covering of a building or vehicle
(e.g: the rain woke him, hammering on the roof)

- the upper limit or level of prices or wages
(e.g: starting salary £12,185, rising to a roof of £16,835)


Phrases:
- go through the roof
- hit the roof
- the roof of the world

Origin:
Old English hrōf, of Germanic origin; related to Old Norse hróf ‘boat shed’, Dutch roef ‘deckhouse’. English alone has the general sense ‘covering of a house’; other Germanic languages use forms related to thatch

[ruːf], (Verb)

Definitions:
- cover with a roof
(e.g: the yard had been roughly roofed over with corrugated iron)


Phrases:
- go through the roof
- hit the roof
- the roof of the world

Origin:
Old English hrōf, of Germanic origin; related to Old Norse hróf ‘boat shed’, Dutch roef ‘deckhouse’. English alone has the general sense ‘covering of a house’; other Germanic languages use forms related to thatch