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.

To convey or transfer to another, as title, property, or right; to part voluntarily with ownership of.

Capable of being alienated, sold, or transferred to another

Not belonging to the same country, land, or government, or to the citizens or subjects thereof; foreign. / Very unfamiliar, strange, or removed.

(archaic, followed by "from") Estranged; withdrawn in affection; foreign

(obsolete) A stranger; an alien.

plural of alien

Third-person singular simple present indicative form of alien

(transitive) To alien or alienate; to transfer, as title or property.

The process of alienizing something.