space alien

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English[edit]

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Noun[edit]

space alien (plural space aliens)

  1. (chiefly US) An extraterrestrial being; a visitor from outer space.

Usage notes[edit]

  • In American usage, an extraterrestrial being is often called a "space alien," since the unqualified term "alien" is commonly used to denote a U.S. resident who is not a U.S. citizen.

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