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Definitions

alien

[eyl-yuhn, ey-lee-uhn] / ˈeɪl yən, ˈeɪ li ən /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It takes quite a while to reveal that Daniel has stolen from the evil corporation thumb drives containing classified files about the history of alien encounters, dating back to events in Roswell, N.M., in 1947.

From The Wall Street Journal • Jun. 10, 2026

But its discovery in July led to wild speculation that the object was a piece of extraterrestrial technology — maybe even an alien spacecraft.

From Los Angeles Times • Jun. 6, 2026

While acknowledging that proof of alien life could dramatically alter society, he argued the impact could ultimately be positive.

From BBC • Jun. 4, 2026

The Triassic can sometimes seem almost alien compared to the modern world.

From Science Daily • May 29, 2026

I couldn’t believe I had to leave my talking alien cat to go suffer another week of Camp Eclipse.

From "Klawde: Evil Alien Warlord Cat" by Johnny Marciano and Emily Chenoweth




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