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Colliery vs Undefined - What's the difference?

colliery | undefined |

As a noun colliery

is (british) an underground coal mine, together with its surface buildings.

As an adjective undefined is

lacking a definition or value.

colliery

English

(wikipedia colliery)

Noun

(collieries)
  • (British) An underground coal mine, together with its surface buildings.
  • (US) A facility that supplies coal.

    • 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