A roof is the part on top of a building that keeps rain, snow, and sun out. It helps keep the inside dry and warm.
The roof is red and made of tiles.
Snow is on the roof of the house.
Some cars and machines have a roof to protect people inside from rain and sun. This roof is usually made of metal or other materials.
The car's roof is black and shiny.
Close the roof before it rains.
The word roof can mean any kind of shelter or a place to stay safe, not only a building top. It means protection from weather or harm.
They found a roof under the old barn.
Everyone needs a roof to stay safe.
Roof can mean the highest point or top part of anything, like a mountain or hill. It means the very top surface.
The roof of the mountain is covered with snow.
We climbed to the roof of the rock wall.
To roof means to build or put a roof on a building. It means adding a top cover to protect the building.
They roofed the new house last week.
We will roof the shed tomorrow.
Sometimes 'roof' means the top part of an animal’s body, like its back or head surface. This use is less common and more informal.
The turtle pulled its head into its roof.
The animal’s roof is strong and hard.
