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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.

The conspiracy theory grouped together several so-called "missing scientists" including a retired Air Force general, an engineer, and a custodian.

From BBC • Jun. 2, 2026

Rick Rubin once said to me — he has a theory about album track lists where he thinks that the first four songs are totally crucial.

From Los Angeles Times • Jun. 1, 2026

In this case, that meant pulling from both algebraic number theory and discrete geometry, which have about as much in common as the marathon and pole vault.

From The Wall Street Journal • May 30, 2026

One theory is that older baby boomers have already begun retiring and are relying on Medicare and other healthcare services, placing growing demands on the healthcare system.

From MarketWatch • May 30, 2026

A credit default swap on a thirty-year subprime mortgage bond was a bet designed to last for thirty years, in theory.

From "The Big Short" by Michael Lewis




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