roof -- (a protective covering that covers or forms the top of a building)
roof -- (protective covering on top of a motor vehicle)
roof -- (the inner top surface of a covered area or hollow space; "the roof of the cave was very high"; "I could see the roof of the bear's mouth")
ceiling, roof, cap -- (an upper limit on what is allowed; "he put a ceiling on the number of women who worked for him"; "there was a roof on salaries"; "they established a cap for prices")
Overview of verb roof
The verb roof has 1 sense
roof -- (provide a building with a roof; cover a building with a roof)