What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Goodbye vs Undefined - What's the difference?

goodbye | undefined |

As an interjection goodbye

is ; a formula used to another person or persons when the speaker, writer, or person addressed is departing.

As a noun goodbye

is an utterance of goodbye, the wishing of farewell to someone.

As an adjective undefined is

lacking a definition or value.

goodbye

English

Alternative forms

* good-by * good-bye * good bye

Interjection

(en interjection)
  • ; a formula used to another person or persons when the speaker, writer, or person addressed is departing.

    • Synonyms

    * (informal) catch you later, bye, bye-bye, ciao, see you, so long, ta ta, toodeloo, TTFN, ttyl * (formal) adieu, adios, farewell, sayonara * (slang) hasta la vista, , later, laters, keep it real, peace out. take it easy, toodles, peace, cya * cheerio, cheery-bye, toodle pip (dated) * good morn, good morning (during the morning ) * good afternoon, good midday (during midday ) * good day (during day ) * good eve, good evening (during the evening ) * good night (during night ) * See also

    Derived terms

    * kiss goodbye * say goodbye

    Related terms

    * good riddance

    Noun

    (en noun)
  • An utterance of goodbye, the wishing of farewell to someone.
    • John gave Rebecca a goodbye to wish her luck on her holiday.

    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