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Whoa vs Undefined - What's the difference?

whoa | undefined |

As an interjection whoa

is stop (especially when commanding a horse or imitative thereof ); calm down; slow down.

As an adjective undefined is

lacking a definition or value.

whoa

English

Alternative forms

* woah * whoah

Interjection

(en interjection)
  • Stop (especially when commanding a horse or imitative thereof ); calm down; slow down.
    • Whoa , Nelly!
  • An expression of surprise.
    • Whoa , are you serious?

    Usage notes

    Another alternate spelling from woa, woah (c. 1856), is common.

    Antonyms

    * giddyup, giddy-up, giddap

    References

    * Whoa! Woah?! Whoah. How an old exclamation became the Internet’s most variously spelled word., Matthew J.X. Malady, Slate English terms with homophones

    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