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Lockdown vs Undefined - What's the difference?

lockdown | undefined |

As a noun lockdown

is (in an institution, such as a prison or school ) the confinement of people in their own rooms (or cells) as a security measure after a disturbance.

As an adjective undefined is

lacking a definition or value.

lockdown

English

Noun

(wikipedia lockdown) (en noun)
  • (in an institution, such as a prison or school ) The confinement of people in their own rooms (or cells) as a security measure after a disturbance
  • (US) A contrivance to fasten logs together in rafting.

    • 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