Definitions

1. noun

A person or being from another planet or world, especially one that is not native to Earth.

“The aliens in the movie were depicted as tall and slender beings with large, black eyes.”

2. adjective

Foreign or not native to a particular place or culture.

“The alien customs and traditions of the foreign country were fascinating to observe.”

3. noun

A person who is not a member of a particular group or organization.

“The company’s new alien investor provided the funding for the project.”

4. noun

Something that is very strange or unlike anything else.

“The alien landscape of the desert was unlike anything he had ever seen before.”