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Nonsentence vs Undefined - What's the difference?

nonsentence | undefined |

As a noun nonsentence

is (grammar) an utterance that is not a sentence.

As an adjective undefined is

lacking a definition or value.

nonsentence

English

Noun

(en noun)
  • (grammar) An utterance that is not a sentence.
  • *1979 , (Steven Pinker), "Formal models of language learning", Language, Cognition, and Human Nature :
  • *:Those strings in the language are called sentences; the strings not in the language are called nonsentences .

    • 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