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Rooftop vs Ceiling - What's the difference?

rooftop | ceiling |

As a proper noun rooftop

is (roof).

As a noun ceiling is

the surface that bounds the upper limit of a room.

As a verb ceiling is

.

rooftop

English

Adjective

(-)
  • Atop a roof; on a roof
    • In recent years, we've seen Bangkok become the unofficial rooftop bar capital of the world.
  • :: —Thailand's Islands and Beaches , Lonely Planet

    • Noun

    (en noun)
  • (somewhat formal) The area atop a roof
    • Why do you think the rooftop of their apartment building is called "tar beach"? (Answers may vary.)
  • :: —Multicultural Books for Primary Grades , Liz Rothlein
  • the top layer of a roof, the material covering or composing a roof
    • The house itself was a mound of red baked bricks and a tin rooftop .
  • :: —The Chocolate Shop Perverts , Ernest Alanki

    • Usage notes

    As it refers specifically to the area atop the roof or to the top area of the roof, "rooftop" is not always synonymous with the entire "roof". For instance, "the rooftop blew off the house" would (probably unintentionally) imply some lower level of the roof remained. Compare similar location words such as desktop.

    Synonyms

    * roof

    Related terms

    * desktop * hilltop * housetop * mountaintop * tabletop * treetop

    Derived terms

    * shout from the rooftops * rooftop of the world, an epithet of Tibet

    ceiling

    English

    Noun

    (en noun)
  • The surface that bounds the upper limit of a room.
  • * {{quote-book, year=1963, author=(Margery Allingham)
    • , title=(The China Governess) , chapter=1 citation , passage=The huge square box, parquet-floored and high-ceiling ed, had been arranged to display a suite of bedroom furniture designed and made in the halcyon days of the last quarter of the nineteenth century, […].}}
  • The upper limit of an object or action.
  • (aviation) The highest altitude at which an aircraft may fly.
  • (mathematics) The smallest integer greater than or equal to a given number.
  • (nautical) The inner planking of a vessel.

    • Derived terms

    * bamboo ceiling * cathedral ceiling * ceilingward * dropped ceiling * flight ceiling * glass ceiling * hit the ceiling

    Antonyms

    * floor

    Verb

    (head)