roof
/ruːf/ (bre, ipa) · /ruːf/ (ame, ipa) · /ˈrüf ˈru̇f/ (ame, mw)
roof — noun
- roofsingular
- roofsplural
1. The outer covering placed above a house, car, or similar construction, which kee
The outer covering placed above a house, car, or similar construction, which keeps the space beneath dry and sheltered from weather conditions.
Roya climbed onto the roof to fix a loose tile after the storm.
collocation: on the roof
Rainwater from the roof flows into a large barrel near the garden wall.
The red car parked outside has a small dent on its roof from the hailstorm.
Heavy snow piled on the flat roof of the workshop and blocked the door.
Theo spent the whole weekend repairing the shed roof with his uncle Luis.
文法句型
roof + of + noun phrase
on the roof
under a roof
常見錯誤
2. The highest number or level that is officially permitted for something such as a
The highest number or level that is officially permitted for something such as a price, salary, tax rate, or amount of pollution.
The government announced a roof on the price of basic medicines next year.
pattern: a roof on + noun
Kasia argued that a roof on carbon emissions would help slow climate change.
Vivek's rental contract includes a roof on how much the landlord can raise the rent.
The new law puts a roof on late fees that banks can charge their customers.
- floor
the lowest allowed level rather than the highest
文法句型
put/set a roof on + noun phrase
roof of + number/amount
用法筆記
Common in formal, legal, or business writing about regulations. Typically appears in the structure 'a roof on [something]' — you set or place a roof on an amount, not on a physical object.
常見錯誤
3. The bony curved surface forming the upper boundary inside the mouth, which separ
The bony curved surface forming the upper boundary inside the mouth, which separates the oral cavity from the nasal cavity above it.
The hot soup burned the roof of Min's mouth and made her wince.
fixed phrase: the roof of + possessive + mouth
When you say the letter "k," your tongue touches the roof of your mouth.
Sora felt a sore spot on the roof of his mouth after eating spicy food.
The dentist gently pressed the roof of David's mouth with a small metal tool.
- palate
formal or medical term for the same part of the mouth
- hard palate
more precise; refers specifically to the bony front section of the mouth roof
文法句型
the roof of the/your mouth
用法筆記
Almost always used in the fixed phrase 'the roof of the/your mouth' — you rarely hear the word 'roof' alone to mean palate. The hard front part is distinguished from the soft palate further back in the mouth.
roof — verb
- roofpresent simple I / you / we / they
- roofs3rd person singular
- roofing-ing form
- roofedpast simple
1. To build or fit a roof onto a structure such as a house, shed, or extension, com
To build or fit a roof onto a structure such as a house, shed, or extension, completing the top covering so the building is enclosed and protected.
The builders roofed the new house with red clay tiles in just one week.
passive pattern: roofed with + material
The workers roofed the garden shed using sheets of strong corrugated metal.
Lien hired a team to roof the extension on the back of her family's house.
The old farmhouse was roofed with wooden shingles that matched the nearby barn.
文法句型
roof + noun phrase + with + material
be roofed with/in + material
用法筆記
Frequently occurs in the passive voice ('the house was roofed with tiles'). The past participle 'roofed' is also commonly used as an adjective ('a grass-roofed hut', 'a newly roofed barn').