alien

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alien¹

  • /ˈeɪ.li.ən/
  • /ˈeɪ.ljən/

Rhymes with -eɪliən

Where it comes from

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

noun aliens · alyaunte

  1. A person, animal, plant, or other thing which is from outside the family, group, organization, or territory under consideration. An animated film intended to inform travellers about the dangers that alien species present to Arctic ecosystems is being released today. The message is that it is important to ensure that nobody accidentally brings alien species with them as stowaways in their clothing, baggage or equipment.

    Similar: fremd, guest, stranger

  2. A citizen or national of another sovereign state. An alien born may purchase lands, or other estates: but not for his own use; for the king is thereupon entitled to them.
  3. derogatory, sometimes A mischievous or suspicious foreigner.
  4. Any life form of extraterrestrial or extradimensional origin. You might not have much use for me. You spend too much time with the damn aliens, pretending your time in the gangs back on Earth never happened. I know you weren't happy when I found you at the Citadel a couple years back. But I'm glad you're on this. I hope you find whoever took my people on Freed
  5. One excluded from certain privileges; one alienated or estranged. […]aliens from the common wealth of Iſrael[…]

Similar: outlander

adjective more alien · most alien · alyaunte

  1. Not belonging to the same country, land, or government, or to the citizens or subjects thereof; foreign. alien subjects, enemies, property, or shores

    Similar: allotrious, strange, acquired, additional, adventitious, alien, ascititious, extraneous, foreign, fremd, intrusive, outlandish

  2. Very unfamiliar, strange, or removed. principles alien to our religion

    Similar: monstrous, weird, aberrant, abnormal, alien, anomalous, as queer as Dick's hatband, bizarre, booky, curious, deviant, discrepant

  3. Pertaining to extraterrestrial life; typical of an extraterrestrial creature. It had a peculiar alien tallness, a peculiar alien flattened head, peculiar slitty little alien eyes[.]

    Similar: extraterrestrial, nonterrestrial, xenomorphic

verb aliens · aliening · aliened · aliene · alyaunte

  1. transitive To estrange; to alienate.
  2. To transfer the ownership of something.

Alien²

Where it comes from

Borrowed from Mandarin 阿蓮 (Ālián) Wade–Giles romanization: A¹-lien².

proper noun

  1. alternative Alternative form of Alian Premier Chiang Ching-kuo traveled to Alien village in Kaohsiung county May 23 to inspect the Chung-chou No. 3 oilwell prospect of Chinese Petroleum Corporation.

Thesaurus

Closest in meaning: extraterrestrial, extrinsic, foreign, foreigner, exotic, outlander, noncitizen, disaffect, estrange, alienate, strange, stranger, unknown, extraterrestrial being, martian, tropical

noun

Similar: outlander

Translations

Every language

noun person, etc. from outside

Españoldesconocido, desconocida, advena, forastero
한국어외국인 oegugin, 이국인 igugin
日本語余所者 yosomono
中文異客 /异客 yìkè, 陌生人 mòshēngrén
हिन्दीअनजाना anjānā, अनजानी anjānī, बाहरी bāhrī, विदेशी videśī, परदेसी pardesī
Portuguêsestranho
Françaisétranger, étrangère
DeutschFremdling, Fremder, Fremde, Ausländer, Ausländerin
Italianostraniero
Ελληνικάξένος xénos
Românăstrăin, străină
Русскийчужа́к čužák, прише́лец prišélec, незнако́мец neznakómec, незнако́мка neznakómka, посторо́нний postorónnij, посторо́нняя postorónnjaja
العربيةغَرِيب ḡarīb, غَرِيبَة ḡarība
עבריתזָר zár

noun foreigner

Españolextranjero, extranjera
한국어외국인 oegugin, 이국인 igugin
日本語外国人 gaikokujin, 外人 gaijin, 異邦人 ihōjin
中文外國人 /外国人 wàiguórén, 外人 wàirén, 老外 lǎowài
हिन्दीविदेशी videśī, अन्यदेशीय anyadeśīya, परदेसी pardesī
Portuguêsestrangeiro, forasteiro
Françaisétranger, étrangère
DeutschFremder, Fremde, Ausländer, Ausländerin
Italianostraniero, forestiero
Ελληνικάξένος xénos
Românăstrăin, străină
Русскийиностра́нец inostránec, чужезе́мец čužezémec, иноро́дец inoródec
Tiếng Việtngười nước ngoài, người ngoại quốc
العربيةأَجْنَبِيّ ʔajnabiyy, أَجْنَبِيَّة ʔajnabiyya
עבריתגֵּר ger

noun life form of non-Earth origin

Españolextraterrestre, alienígena
한국어우주인 uju'in, 외계인 oegyein, 에일리언 eillieon
日本語宇宙人 uchūjin, 異星人 iseijin, エイリアン eirian
中文外星人 wàixīngrén, 宇宙人 yǔzhòurén
हिन्दीपरग्रही paragrahī
Portuguêsalienígena, extraterrestre, alien
Françaisextraterrestre, alien
DeutschAußerirdischer, Außerirdische, Alien, Weltraumwesen
Italianoextraterrestre, alieno
Ελληνικάεξωγήινος exogíinos
Românăextraterestru, extraterestră
Русскийинопланетя́нин inoplanetjánin, инопланетя́нка inoplanetjánka, инопланетя́не inoplanetjáne, прише́лец prišélec
Tiếng Việtngười ngoài hành tinh
العربيةفَضَائِيّ m or فَضَائِيَّة faḍāʔiyy
עבריתחַיְזָר khayzár, חוּצָן khutsán

adj not belonging to the same country

Españolalienígena
日本語外来の gairai no, 外国の gaikoku no
中文外來的 /外来的 wàilái de
हिन्दीविदेशी videśī
Portuguêsalienígena
Françaisétranger
Deutschausländisch, fremd, fremdländisch, auswärtig
Ελληνικάξένος xénos
Românăstrăin

adj very unfamiliar, strange

Españolajeno, alienígeno
日本語相容れない aiirenai, 異質な ishitsu na
हिन्दीअपरिचित apricit, अनजान anjān
Portuguêsalheio
Deutschfremd, fremdartig
Ελληνικάξένος xénos
Românănefamiliar

adj pertaining to extraterrestrial life

Españolalienígena, extraterrestre
हिन्दीपरग्रही paragrahī
Portuguêsalienígena, extraterrestre
Françaisextraterrestre
Deutschaußerirdisch
Italianoextraterrestre
Românăextraterestru

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MLA

"alien." Wiktionary, via Micwyn, micwyn.com/word/alien. Accessed 6 Nov. 2026.

APA

alien. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/alien

Chicago

"alien." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/alien.

BibTeX
@misc{alien_2026,
  title = {alien},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/alien},
  urldate = {2026-11-06}
}