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 commentary recently shared with MarketWatch, Straehl highlighted a couple of theories driving what he has identified as a shift toward more short-term trading in the U.S. equity market.

From MarketWatch ● Aug. 30, 2026

Two remarkably successful theories explain nearly everything we observe in the universe, from tiny atoms and molecules to planets, stars, and galaxies.

From Science Daily ● Aug. 30, 2026

While all these theories successfully describe the large-scale clumping scientists can measure, they disagree over how dark matter should clump on smaller scales.

From Los Angeles Times ● Aug. 28, 2026

As a scholar of conspiracy theories and extremism, I’ve watched QAnon seep from the margins into mainstream American politics over the past decade.

From Salon ● Aug. 28, 2026

Those who still have the energy to argue have theories about what is causing the sickness.

From "Blood on the River" by Elisa Carbone