alien

B2 (Upper Intermediate)
UK/ˈeɪ.li.ən/US/ˈeɪ.li.ən/

Neutral to formal in legal/immigration contexts; informal in science fiction contexts.

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Definition

Meaning

A being from another planet; something or someone unfamiliar, foreign, or not belonging to a particular place or environment.

A person who is not a citizen of the country in which they live, i.e., a foreign national; a concept or feeling that is completely opposed to one's own nature or beliefs.

Linguistics

Semantic Notes

The word's primary meanings are: 1) Extraterrestrial being (common in popular culture). 2) Foreign national (legal/administrative term). 3) Profoundly unfamiliar or repugnant (literary/figurative).

Dialectal Variation

British vs American Usage

Differences

The 'foreign national' meaning is more common in US legal/administrative contexts (e.g., 'resident alien'). In the UK, 'foreign national' is preferred in official contexts, though 'alien' is still used in law.

Connotations

In both varieties, the extraterrestrial meaning is dominant in popular culture. The 'foreign national' meaning can carry negative, dehumanising connotations in public discourse, making it less favoured in sensitive contexts.

Frequency

Overall frequency is similar. The extraterrestrial sense is high frequency in both; the legal sense is mid-frequency in US English, lower in UK English.

Vocabulary

Collocations

strong
space alienillegal alienalien lifealien invasionalien species
medium
alien conceptalien culturealien technologyalien worldfeel alien
weak
alien formalien soundalien landscapealien presencecompletely alien

Grammar

Valency Patterns

be alien to somebody/somethingfeel alien (in a place)seem alienbecome alienregard/treat/view someone as an alien

Vocabulary

Synonyms

Strong

strangerimmigrantoutlandervisitor from spacemartian (context-specific)

Neutral

foreignerextraterrestrialETnon-citizenoutsider

Weak

newcomerothernon-nativeexoticunfamiliar person/thing

Vocabulary

Antonyms

nativecitizenlocalfamiliarearthlingterrestrial

Phrases

Idioms & Phrases

  • (be) alien to one's nature
  • alien concept
  • out of this world (positive, related to 'alien' quality)

Usage

Context Usage

Business

Rare. Possibly in 'alien concepts to our corporate culture'.

Academic

Used in political science/law (e.g., 'alien suffrage'), sociology (e.g., 'social alienation'), and astrobiology.

Everyday

Primarily the extraterrestrial meaning; sometimes used to describe something very strange (e.g., 'This custom is alien to me').

Technical

Legal (immigration status), Astrobiology (search for alien life), and Science Fiction genres.

Examples

By Part of Speech

verb

British English

  • (Archaic/Law) To transfer property or rights to another.

American English

  • (Archaic/Law) To alienate property.

adverb

British English

  • (No standard adverbial form. 'Alienly' is non-standard/very rare.)

American English

  • (No standard adverbial form.)

adjective

British English

  • The whole bureaucratic process felt utterly alien to her.
  • They discovered an alien plant species.

American English

  • His values were alien to the community.
  • The search for alien intelligence continues.

Examples

By CEFR Level

A2
  • The film is about a friendly alien.
  • He feels like an alien in a new school.
B1
  • The idea of working abroad was completely alien to her.
  • Scientists are looking for signs of alien life.
B2
  • The legal status of an undocumented alien is complex.
  • The landscape was so barren it looked almost alien.
C1
  • Philosophies utterly alien to Western thought were examined in the thesis.
  • The 1950s saw a surge in cultural anxiety reflected in alien invasion narratives.

Learning

Memory Aids

Mnemonic

Think of 'A LIE N' - an alien might tell a lie about coming from another planet.

Conceptual Metaphor

UNFAMILIAR IS ALIEN / FOREIGN IS ANOTHER WORLD (e.g., 'His ideas were alien to the team').

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not confuse with 'алиен' (direct transliteration) – use 'инопланетянин' for extraterrestrial, 'иностранец' for foreign national, 'чужой' for something foreign/strange.
  • The legal term 'alien' has a specific administrative meaning broader than just 'иностранец'.

Common Mistakes

  • Using 'alien' to politely mean 'foreign colleague' (it can sound dehumanising).
  • Confusing 'alien' (adj/noun) with 'alienate' (verb).

Practice

Quiz

Fill in the gap
The concept of failure was so to her perfectionist mindset that she couldn't even process it.
Multiple Choice

In which context is the use of 'alien' MOST likely to be considered insensitive or dehumanising?

FAQ

Frequently Asked Questions

Yes, in most social contexts. While it is a formal legal term in the US (e.g., 'resident alien'), in everyday language it reduces a person to a 'non-belonging other' and is considered dehumanising. Terms like 'foreign national', 'immigrant', or 'international resident' are preferred.

'Foreigner' is a general, neutral term for someone from another country. 'Alien' is a specific legal term for a non-citizen and carries stronger connotations of 'otherness' and 'not belonging'. 'Alien' is also the standard term for extraterrestrial beings.

Yes, commonly. As an adjective, it means 'unfamiliar and disturbing' or 'from another world'. E.g., 'an alien environment', 'alien customs'.

They share the Latin root 'alienus' meaning 'belonging to another'. 'Alienate' means to make someone feel isolated or estranged (i.e., to make them feel like an 'alien').

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