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Chad vs Undefined - What's the difference?

chad | undefined |

As a noun chad

is (uncountable) small pieces of paper punched out from the edges of continuous stationery, punched cards, paper tape etc.

As an adjective undefined is

lacking a definition or value.

chad

English

(wikipedia Chad)

Etymology 1

(etyl) Ceadda, of obscure meaning; name of a seventh century saint, revived in the 20th century.

Proper noun

(en proper noun)
  • . Also a modern nickname for Charles, Chadwick and similar-sounding names
  • (British) The British version of the "Kilroy was here" graffiti.
    • Quotations
    * 1993 , Devil's Waltz , Random House 1998, ISBN 0345460715, page 26: *: "What else? Anyway, here's the genealogy: Charles Junior's only son is Charles the Third - like royalty. He goes by Chip - Cassie's daddy. The mom is Cindy. The dead son was Chad - Charles the Fourth." *: "All Cs," I said. "Sounds like they like order." * 1995 , The Black Album , Faber and Faber, ISBN 0571150861, pages 88, 90 *: 'He used to be called Trevor Buss.' *: 'Chad ? I don't believe you.' - - - *: 'He changed his name into Muhammad Shahabuddin Ali-Shah.' *: 'No!' *: 'He'd insist on the whole name. He played football and his mates got fed up saying, "Pass the ball, Muhammad Shahabuddin Ali-Shah" - - - No one passed to him. So he became Chad .' English diminutives of male given names

    Etymology 2

    Believed to be from (etyl) tsade ("lake", after )

    Proper noun

    (en proper noun)
  • A country in Central Africa. Official name: Republic of Chad.
    • Hypernyms
    *Subsahara
    See also
    * ----

    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