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Someone vs Undefined - What's the difference?

someone | undefined |

As a pronoun someone

is some person.

As a noun someone

is a partially specified but unnamed person.

As an adjective undefined is

lacking a definition or value.

someone

English

Pronoun

(English Pronouns)
  • Some person.
    • Is someone there?

    Usage notes

    * Logically related to anyone, everyone, and no one. Becomes no one via negation. *: Did anyone help with the clean-up effort? *: Yes, someone''' helped yesterday, but '''no one''' did today because '''everyone was too busy.

    Synonyms

    * anybody, anyone, somebody

    Abbreviations

    Some translation dictionaries have used the abbreviation or so for someone.

    Noun

    (en noun)
  • A partially specified but unnamed person.
    • Do you need a gift for that special someone ?
    The someones under discussion were eventually arrested.

    Related terms

    * no one * everyone * anyone * somewhere * something English compound determinatives English indefinite pronouns English third person pronouns 1000 English basic words

    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