Alien Definition

ālē-ən, ālyən
aliens
adjective
Belonging to another country or people; foreign.
Webster's New World
Belonging to, characteristic of, or constituting another and very different place, society, or person; strange.
American Heritage
Strange; not natural.
Cruel words alien to his lips.
Webster's New World
Opposed or repugnant.
Beliefs alien to one's religion.
Webster's New World
Of aliens.
Webster's New World
Antonyms:
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noun
aliens
A foreigner.
Webster's New World
A foreign-born resident in a country who has not become a naturalized citizen.
Webster's New World
A person from another and very different family, people, or place.
American Heritage
An outsider.
Webster's New World
In science fiction, a being in or from outer space and not native to the Earth; extraterrestrial.
Webster's New World
Synonyms:
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verb
aliens
To transfer (land, property, etc.)
Webster's New World
Wiktionary
other
An alien who permanently resides outside the United States.
Webster's New World Law
An alien who marries an American citizen, but with no intention of living with his or her spouse as husband and wife, for the purpose of improperly entering the United States or avoiding deportation.
Webster's New World Law
An alien who may be deported because she was an inadmissible alien when she entered the United States or has violated the regulations (for example, by committing a serious crime) governing the conduct of aliens who are within the country.
Webster's New World Law
An alien who cannot legally enter the United States. There are many reasons why an alien may be prohibited from entry, including a criminal record or poor health.
Webster's New World Law
An alien who enters or remains in the United States without legal authorization or by fraud.
Webster's New World Law
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Other Word Forms of Alien

Noun

Singular:
alien
Plural:
aliens

Origin of Alien

  • Old French alien, aliene, from Latin aliēnus (“belonging to someone else, later exotic, foreign”), from alius (“other”), from Proto-Indo-European *h₂élyos.

    From Wiktionary

  • Middle English from Old French from Latin aliēnus from alius other al-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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