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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.

"Initially, I thought we must have sequenced some alien species. It's very rare for an active gene, which makes a protein, to not have a match."

From Science Daily • Mar. 26, 2026

The Immigration and Nationality Act allows an "alien who is physically present in the United States or who arrives in the United States" to apply for asylum.

From Barron's • Mar. 24, 2026

Brazil’s UFO capital marks 30 years since alleged alien encounter.

From MarketWatch • Mar. 24, 2026

What begins in isolation turns into something closer to a buddy movie, as Grace ends up working with an alien he names Rocky, another traveler trying to solve the same problem.

From Los Angeles Times • Mar. 19, 2026

They were being quieter—and geekier—than Neil’s group while discussing that new alien movie, which goes without saying.

From "From Twinkle, with Love" by Sandhya Menon