Alien

/ˈeɪ.li.ən/

Meaning & Definition

noun
A person from another country, often used in legal contexts regarding immigration.
The alien applied for a visa to remain in the country.
An extraterrestrial being.
The movie depicted aliens coming to invade Earth.
adjective
Relating to or characteristic of a foreign nation or people.
She found the customs of the alien culture fascinating.
Strange or unfamiliar.
The concept of teleportation felt alien to him.

Etymology

From Latin alienus meaning 'belonging to another, foreign, strange'.

Common Phrases and Expressions

alienation
The feeling of being isolated or estranged.
alien species
Non-native organisms that disrupt local ecosystems.
illegal alien
A person who resides in a country unlawfully.

Related Words

extraterrestrial
Related to beings from outside Earth.
immigrant
A person who comes to live permanently in a foreign country.
foreigner
A person born in or coming from a country other than one's own.

Slang Meanings

Someone who is socially awkward or out of place.
At the party, I felt like such an alien among all the cool kids.
A person who is very different in behavior or style.
He dresses so weirdly, I can't help but think he's an alien.