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Doppelganger vs Undefined - What's the difference?

doppelganger | undefined |

As a noun doppelganger

is doppelganger,.

As an adjective undefined is

lacking a definition or value.

doppelganger

English

Alternative forms

*

Noun

(en noun)
  • A ghostly double of a living person, especially one that haunts such a person.
  • An evil twin.
  • A remarkably similar double.
  • (fantasy) A monster that takes the forms of people, usually after killing them.

    • Synonyms

    *alter ego

    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