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- Dictionaryalien/ˈeɪlɪən/
adjective
- 1. belonging to a foreign country: "an alien culture" Similar Opposite
- 2. unfamiliar and disturbing or distasteful: "principles that are alien to them" Similar Opposite
noun
- 1. a foreigner, especially one who is not a naturalized citizen of the country where he or she is living: "an enemy alien" Similar Opposite
- 2. a hypothetical or fictional being from another world: "she discovers that the alien's spaceship has crashed" Similar
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The meaning of ALIEN is belonging or relating to another person, place, or thing : strange. How to use alien in a sentence. Synonym Discussion of Alien.
ALIEN definition: 1. relating to creatures from another planet: 2. strange and not familiar: 3. coming from a…. Learn more.
noun. a creature from outer space; extraterrestrial. Often Disparaging and Offensive. a resident of one country who was born in or owes allegiance to another country and has not acquired citizenship by naturalization in the country of residence ( citizen). resident alien, illegal alien. a foreigner. a person who has been estranged or excluded.
Alien means belonging to a different country, race, or group, usually one you do not like or are frightened of. [ formal , disapproval ] He said they were opposed to the presence of alien forces in the region.
ALIEN definition: 1. strange and not familiar: 2. relating to creatures from another planet: 3. a creature from…. Learn more.
Something that's alien is different or foreign. In science fiction, space aliens come from other planets. When we talk about aliens, or things that are alien, we're talking about things and people that are different and strange to us — like an alien from outer space.
Definition of alien noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.