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Pappy vs Undefined - What's the difference?

pappy | undefined |

As a proper noun pappy

is (informal) one's grandfather.

As an adjective undefined is

lacking a definition or value.

pappy

English

Etymology 1

Adjective

(er)
  • Like pap; soft; mushy.

    • Etymology 2

    Noun

    (pappies)
  • (colloquial, regional) father
  • (colloquial, regional) grandfather
    • Derived terms
    * grandpappy

    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