1. the structure forming the upper covering of a building or vehicle
2. the upper limit or ceiling of something

1. to cover with or as if with a roof

Examples

• The roof of the house needs new shingles.
• Rain was drumming on the car roof.
• We watched the fireworks from the roof.
• The price hit the roof when demand increased.
• They decided to roof the patio with glass panels.
• The new stadium will be roofed with a retractable dome.
• Snow accumulated on the steep roof.
• The roof collapsed under the weight of the ice.