Dictionary definition · alien
noun
- a person who comes from a foreign country; someone who does not owe allegiance to your country
- anyone who does not belong in the environment in which they are found
- a form of life assumed to exist outside the Earth or its atmosphere
verb
- transfer property or ownership"The will aliened the property to the heirs"
adjective
- not contained in or deriving from the essential nature of something"an economic theory alien to the spirit of capitalism"
- being or from or characteristic of another place or part of the world"alien customs"
Similar words
Source: Open English WordNet (CC BY 4.0).