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.

See Examples For:

theories

I know there’s all sorts of conspiracy theories going along, and I don’t think the FBI… I think the FBI is wasting their time if they’re doing that,” Donald Trump told reporters on Wednesday.

From Salon ● Jul. 14, 2026

They are expected to provide clarity and tamp down unwarranted panic, not stoke conspiracy theories.

From Salon ● Jul. 13, 2026

The Administration should not want conspiracy theories to proliferate.

From The Wall Street Journal ● Jul. 12, 2026

Liberland is also entirely tax-free, something its interior minister, Ivan Pernar, a controversial Croatian former MP who was kicked out of parliament for spreading conspiracy theories, explains to me.

From BBC ● Jul. 10, 2026

Their mathematical theories might be beautiful and consistent and might seem to explain the nature of the universe—and be utterly wrong.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife