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Definitions

theory

[thee-uh-ree, theer-ee] / ˈθi ə ri, ˈθɪər i /


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.

"By combining theory with our experimental ability to precisely control surface terminations, we open a new path toward MXenes with improved stability and tailored functional properties," concludes Ghorbani-Asl.

From Science Daily • Apr. 4, 2026

Suppliers like Sphere have growth rates that “in theory should be faster, and are faster, than the launch companies,” Khodjamirian told MarketWatch, adding that their “risk levels are lower” than rocket makers.

From MarketWatch • Apr. 3, 2026

One theory believed to be part of the investigation is that the school, next to an Islamic Revolutionary Guards Corps base, could have been hit as a result of outdated intelligence.

From BBC • Apr. 3, 2026

In theory, that limits the scenarios in which banks take a hit to only very severe and rapid losses among the underlying loans.

From The Wall Street Journal • Apr. 1, 2026

During the rest of the drive home, I described in detail my Cat Fantastic findings proving my theory, and then the printer making them sizzle up in smoke.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas