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Backstop vs Undefined - What's the difference?

backstop | undefined |

As a noun backstop

is a device that prevents railroad cars from rolling off a railroad track.

As a verb backstop

is to serve as backstop for.

As an adjective undefined is

lacking a definition or value.

backstop

English

Noun

(wikipedia backstop) (en noun)
  • A device that prevents railroad cars from rolling off a railroad track.
  • (baseball) A wall behind home plate.
  • A catcher; the position of catcher

    • Verb

    (backstopp)
  • To serve as backstop for.
  • To bolster, support.
  • * {{quote-news
    • , year=2013 , date=March 26 , author=Douglas Busvine and Darya Korsunskaya , title=Russia backstops Cyprus bailout despite anger , work=Reuters citation , page= , passage=Russia signalled on Monday it would backstop the European Union's bailout of Cyprus despite anger that the weekend rescue deal would impose heavy losses on uninsured depositors, many of them Russian.}}

    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