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English definition of “roof”

roof

noun [C] uk   /ruːf/ us  
A2 the covering that forms the top of a building, vehicle, etc.: The house has a sloping/flat/tiled/thatched, etc. roof. Put the luggage on the roof of the car. The roof (= upper surface) of the cave is 50 metres up. This cake is so dry that it sticks to the roof of your mouth (= upper surface of the mouth).

roof

verb [T often passive] uk   /ruːf/ us  
to put a roof on a building
-roofed
suffix uk   /-t/ us  
a slate-roofed house
Phrasal verbs
(Definition of roof from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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