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

In plain language, that means he’s probably going to ramble late into the night about a bunch of baseless conspiracy theories.

From Slate ● Jul. 16, 2026

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

“He probably thinks academic theories of originalism can give you crucial guardrails about how to proceed,” said Sherif Girgis, a law professor at Notre Dame and former Alito clerk.

From The Wall Street Journal ● Jul. 10, 2026

If certain theories are correct and the universe has no built in clock, how can events be placed in the correct order?

From Science Daily ● Jul. 9, 2026

It would seem that these two theories could live in harmony together, each dictating the rules of physics for different aspects of the universe.

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