Extraterrestrial: meaning, definitions and examples

Used to refer to anything that comes from outside the Earth, typically involving concepts of life forms or objects originating from outside our planet.

• Scientists are seeking signs of extraterrestrial life.
• The movie is about an extraterrestrial being stranded on Earth.

Commonly used to describe beings from another planet or unknown world. It can also mean something foreign or unfamiliar. Sometimes carries a negative connotation when referring to people from other countries.

• She believes she saw an alien spacecraft.
• The concept felt completely alien to him.
• The government is discussing policies on illegal aliens.

Refers to the physical universe beyond the Earth’s atmosphere. Often used to emphasize the expanse that is separate from the Earth's surface and atmosphere.

• Astronauts undergo rigorous training before they travel to outer space.
• The telescope provides a window into the mysteries of outer space.

Relates to the universe, especially elements beyond the Earth. Often used in a more poetic or expansive sense when referring to the vastness and mysteries of space.

• They discussed the cosmic significance of the discovery.
• The event was a cosmic phenomenon.

Used in scientific or formal discussions about life beyond Earth.

• Scientists are looking for signs of extraterrestrial life in the universe
• The movie was about an extraterrestrial being coming to Earth

Common in everyday language, pop culture, and sometimes in a negative or sensational context.

• The movie was about an alien invasion
• Some people believe that aliens have visited our planet

Informal and often used in fantastical or imaginative contexts, such as stories or discussions with children.

• The comic book featured a heroic space creature saving the galaxy
• Children were drawing pictures of space creatures in art class

An abbreviation often used in casual settings or references to the famous movie 'E.T. the Extra-Terrestrial'.

• Kids love watching 'E
• T
• ' because it’s a heartwarming story about a friendly ET
• My brother thinks he saw an ET in the backyard