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Definitions

theorist

[thee-er-ist, theer-] / ˈθi ər ɪst, ˈθɪər- /
NOUN
philosopher
Synonyms




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.

A U.S. naval officer, historian, and military theorist, Mahan argued that control of the seas was the key to empires from Rome to Britain.

From Barron's • Jun. 5, 2026

Raman, too, has sought to discredit Pratt, dubbing him an anti-vaccine conspiracy theorist.

From BBC • Jun. 2, 2026

And he took an interest in Jones, the conspiracy theorist and radio and internet host.

From Los Angeles Times • May 21, 2026

At times, he gives off the air of a professor, donning blue blazers and short-sleeved button-down shirts as he quotes the political theorist Hannah Arendt.

From The Wall Street Journal • May 19, 2026

Cicero was the great eminence of the Roman age—a lawyer, a politician, and so not only Rome’s greatest theorist of rhetoric but its greatest practitioner.

From "Words Like Loaded Pistols" by Sam Leith




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