alien

/ˈā-lē-ən/

Middle English, "foreign," borrowed from Anglo-French, borrowed from Latin aliēnus "not one's own, of others, foreign, strange," derivative of alius "other" (perhaps going back to *aliai-nos, from an adverbialized locative derivative *aliai "elsewhere")

adjective

  1. belonging or relating to another person, place, or thing : strange

  2. relating, belonging, or owing allegiance to another country or government : foreign

  3. exotic

an alien environment

alien residents

extrinsic extraneous foreign alien mean external to a thing, its essential nature, or its original character. extrinsic applies to what is distinctly outside the thing in question or is not contained in or derived from its essential nature. extraneous applies to what is on or comes from the outside and may or may not be capable of becoming an essential part.

noun

  1. a person who is not of a particular group or place

  2. a foreign-born resident who has not been naturalized and is still a subject or citizen of a foreign country; broadly : a foreign-born citizen

  3. extraterrestrial

aliens seeking asylum in the U.S.

verb

  1. alienate, estrange

  2. to transfer the title of (property)