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Dumbwaiter vs Undefined - What's the difference?

dumbwaiter | undefined |

As a noun dumbwaiter

is (obsolete) a table or set of trays on rollers used for serving food.

As an adjective undefined is

lacking a definition or value.

dumbwaiter

English

Alternative forms

* dumb waiter * dumb-waiter

Noun

(en noun)
  • (obsolete) a table or set of trays on rollers used for serving food
  • (obsolete) a lazy Susan
  • A small elevator used to move food etc. from one floor of a building to another.

    • 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