What context can I use each word in?
Learn when and how to use these words with these examples!
extraterrestrial
Example
Scientists are searching for signs of extraterrestrial life on other planets. [extraterrestrial: adjective]
Example
The movie depicts an extraterrestrial creature visiting Earth. [extraterrestrial: noun]
alien
Example
The invasive species is considered an alien plant in this region. [alien: adjective]
Example
The movie features an alien invasion of Earth. [alien: noun]
Good things to know
Which word is more common?
Alien is more commonly used than extraterrestrial in everyday language, especially in popular culture and media. Extraterrestrial is more commonly used in scientific or technical contexts.
What’s the difference in the tone of formality between extraterrestrial and alien?
Extraterrestrial is typically associated with a more formal and technical tone, while alien is more versatile and can be used in both formal and informal contexts.