/ˈeɪ.li.ən/
noun
Any life form of extraterrestrial or extradimensional origin.A person, animal, plant, or other thing which is from outside the family, group, organization, or territory under consideration.A foreigner residing in a country.One excluded from certain privileges; one alienated or estranged.verb
To estrange; to alienate.To transfer the ownership of something.adjective
Not belonging to the same country, land, or government, or to the citizens or subjects thereof; foreign.Very unfamiliar, strange, or removed.Pertaining to extraterrestrial life.