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Sdf vs Undefined - What's the difference?

sdf | undefined |

As an initialism sdf

is (military|japan) self defense]] [[force|force.

As an adjective undefined is

lacking a definition or value.

sdf

English

Initialism

(Initialism) (en noun)
  • (military, Japan) Self Defense]] [[force, Force

    • Derived terms

    * (Japanese military) JSDF , MSDF , ASDF , GSDF , JMSDF , JASDF , JGSDF

    Anagrams

    * ----

    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