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theories

NOUN

hypothesis, belief

Synonyms

STRONGEST

approach argument assumption code concept doctrine idea ideology method philosophy plan position premise proposal provision rationale scheme speculation suspicion system thesis understanding

STRONG

base basis codification conditions conjecture dogma feeling foundation grounds guess guesswork hunch impression outlook postulate presentiment presumption shot stab supposal supposition surmise theorem

WEAK

formularization suppose systemization

Antonyms

STRONGEST

disbelief fact information reality truth

STRONG

calculation knowledge measurement proof

WEAK

certainty

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.

Over the years, I’ve tested many theories of what’s wrong with the U.S. media—groupthink, the emperor’s new clothes, availability bias.

From The Wall Street Journal • Jun. 9, 2026

Roosevelt employed Mahan’s theories as assistant secretary of the Navy during the Spanish-American War in 1898, when the U.S. seized Cuba, Puerto Rico, the Philippines, and more.

From Barron's • Jun. 5, 2026

Analysts have a few theories, one of which simply relates to recent stock momentum ahead of earnings.

From MarketWatch • Jun. 3, 2026

“The new indictment confirms that our motion to dismiss was a good one — it’s just new charges and new theories trotted out in the hope that something sticks,” Trusty said.

From Los Angeles Times • May 29, 2026

I was struck over and over by similarities between their times and ours, including: countrywide divisions, political name-calling, competing media outlets, new technologies, conspiracy theories, an addiction crisis, a pandemic, and the emphasis on fame.

From "American Spirits" by Barb Rosenstock