(US, law) A person born outside the United States who has legally established temporary or permanent residence in the United States, but has not become a United States citizen.

(chiefly US) An extraterrestrial being; a visitor from outer space.

A small religious house dependent on a large monastery in some other country.

plural of alien priory

plural of alien abduction

(botany) A plant that appears with no apparent human assistance but does not develop a sustained population.

(law) A common law tort that can be brought against the third party alleged to be responsible for the failure of marriage; abolished in many jurisdictions.

(fandom slang) April 26, as a "fan holiday" celebrating the science-fiction horror franchise "Aliens". The date 4/26 is in reference to fictional planet LV-426 where the Xenomorph was first unveiled.

The coercion of a child into behaving in a hostile or fearful manner toward one of the parents.

(law) Estrangement or loss of affection between two people who have a claim on each other's affections (such as two spouses or a parent and child) that is willfully caused by interference from a third party.