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Ceiling vs Undefined - What's the difference?

ceiling | undefined |

As a noun ceiling

is the surface that bounds the upper limit of a room.

As a verb ceiling

is .

As an adjective undefined is

lacking a definition or value.

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)

    • undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined