alien

The Simple English Wikipedia has an article on:

Alien

Pronunciation

• IPA ^(key): /ˈeɪ.li.ən/
• SAMPA: /"eI.lI.@n/

• Audio (US)

  (file)

Noun

Singular alien

Plural aliens

1. (countable) An alien is a person, animal, plant or thing that is not part of the group you look at.
2. (countable) An alien is a person who lives in a foreign country.
   • Antonym: citizen
3. (countable) An alien is a living thing that is not from earth.
   • Synonym: extraterrestrial

   Nobody has ever seen an alien.

Adjective

Positive alien

Comparative more alien

Superlative most alien

1. If something is alien, it is strange or unfamiliar to you.