Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

roof

 
 
/ruːf/ noun

Definition

[C] the surface that covers the top of a building or vehicle: a flat/sloping roof He climbed onto the roof.
the roof of your mouth the top part of the inside of your mouth
(Definition of roof noun from the Cambridge Learner's Dictionary © Cambridge University Press)

“roof” in other dictionaries

Word of the Day

be under a cloud

to not be trusted or popular because people think you have done something bad

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More