Alien

Alien primarily refers to: * Alien (law), a person in a country who is not a national of that country ** Enemy alien, the above in times of war * Extraterrestrial life, life which does not originate from Earth ** Specifically, intelligent extraterrestrial beings; see List of alleged extraterrestrial beings * Introduced species, a species not native to its environment

Alien(s), or The Alien(s) may also refer to:

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