alien

/ˈeɪliən/
adjective
  1. Relating to creatures from outer space.
    • The children drew pictures of alien life forms.
    • The alien spaceship was shaped like a giant disc.
    • Scientists study alien signals from distant stars.
  2. Foreign; from another country.
    • She had to register with the alien registration office.
    • He carried an alien passport from his home country.
    • The law protects the rights of alien workers.
  3. Strange or unfamiliar; not belonging naturally.
    • The customs of the tribe were alien to the visitors.
    • His way of thinking was completely alien to mine.
    • The idea of eating insects is alien to many Western cultures.
noun
  1. A creature from outer space.
    • The movie is about an alien that lands on Earth.
    • Many people believe aliens might exist on other planets.
    • She dressed up as an alien for the Halloween party.
  2. A person who is not a citizen of the country where they live.
    • He moved to Canada and became a legal alien with a work permit.
    • An alien must carry identification documents at all times.
    • The government offers services to help aliens apply for citizenship.
  3. A person who feels different from or not accepted by the people around them.
    • In the new school, she felt like an alien among the other students.
    • After living abroad for years, he felt like an alien in his own hometown.
    • The shy boy often felt like an alien at social gatherings.
Antonyms
What does "alien" mean? | whatsthatwordmean | whatsthatwordmean