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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.

Fundamentally most conspiracy theories are highly implausible and just don’t make sense.

From The Wall Street Journal • May 24, 2026

A third study suggests debunkbots’ success at challenging conspiracy theories is driven by their ability to clearly explain relevant facts.

From The Wall Street Journal • May 24, 2026

Felix Salmon, Elizabeth Spiers, and Emily Peck, discuss theories on why the hell anyone would do this and whether it’s just weird or actually sinister.

From Slate • May 23, 2026

The researchers say their model builds on long-standing evolutionary theories of aging.

From Science Daily • May 22, 2026

Theories, it is said, explain phenomena, not data, and it is always possible to open up a gap between data and phenomena as well as between phenomena and theories.

From "The Invention of Science" by David Wootton