Antonym: floor. Similar words: go off, room, troop, bedroom, bathroom, courtroom, mushroom, classroom. Meaning: [ruːf] 
n. 1. a protective covering that covers or forms the top of a building 2. protective covering on top of a motor vehicle. v. provide a building with a roof; cover a building with a roof.
n. 1. a protective covering that covers or forms the top of a building 2. protective covering on top of a motor vehicle. v. provide a building with a roof; cover a building with a roof. 
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91) I saw flames spurt from the roof.
92) The house had a leaky roof.
93) The roof of the tunnel caved in .
94) Prices for Korean art have gone through the roof.
95) It has a dormer roof joining both gable ends.
96) Flames were shooting up through the roof.
97) The explosion blew the roof off .
98) There was a bird perched on the roof.
99) Our roof was made of dried reeds.sentencedict.com/roof.html
100) The roof of the old house collapsed.
101) We strapped the surfboard to the car roof.
102) A new roof will cost round about ￡3 000.
103) Water was running off the roof.
104) The roof may need extra support.
105) The roof of their house was blown away.
106) We all assisted in mending the roof.
107) The chimney toppled over on the roof.
108) Ranieri returned, saw the mess, and hit the roof.
109) We must have the roof redone.
110) The boy's ball ended up on the garage roof.
111) The tree near the house branched over the roof.
112) I won't have that man under my roof again!
113) The roof leaks every time it rains.
114) The burglar made his getaway across the roof.
115) The house had its roof blown off.
116) Water is dripping from the roof.
117) The cold wind riddled through the worn-out roof.
118) Rain pattered gently on the roof above.
119) The roof beams were 50 centimetres square in cross-section.
120) He wove some branches together to form a roof.