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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.

Apers believe Bigfoot is just a primate unknown to science while Woo-Woos think Bigfoot is some sort of interdimensional traveller - an alien of sort.

From BBC • Apr. 3, 2026

"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

An alien who is stopped in Mexico does not arrive in the United States.”

From Los Angeles Times • Mar. 24, 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

They seem to be a matter of perspective: the more remote or alien the period, the more clear-cut the period style—and the more limited our knowledge and understanding.

From "History of Art, Volume 1" by H.W. Janson