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Adjective: alien  ey-lee-un
  1. Not contained in or deriving from the essential nature of something
    "an economic theory alien to the spirit of capitalism";
    - foreign
  2. Being or from or characteristic of another place or part of the world
    "alien customs";
    - exotic
Noun: alien  ey-lee-un
  1. A person who comes from a foreign country; someone who does not owe allegiance to your country
    - foreigner, noncitizen, outlander
  2. Anyone who does not belong in the environment in which they are found
    - stranger, unknown
  3. A form of life assumed to exist outside the Earth or its atmosphere
    - extraterrestrial being, extraterrestrial, ET
Verb: alien  ey-lee-un
  1. Transfer property or ownership
    "The will aliened the property to the heirs";
    - alienate

Derived forms: aliens, aliened, aliening

See also: extrinsic, foreign, strange

Type of: hypothetical creature, interloper, intruder, transfer, traveler [US], traveller [Brit, Cdn], trespasser

Encyclopedia: Alien