hypothesis

[hahy-poth-uh-sis, hi-] / haɪˈpɒθ ə sɪs, hɪ- /

NOUN

theory

Synonyms

STRONGEST

assumption axiom conclusion conjecture explanation guess inference interpretation premise proposition rationale supposition theorem thesis

STRONG

antecedent assignment attribution basis belief condition data deduction demonstration derivation foundation ground layout lemma philosophy plan position postulate presupposition principle proposal reason scheme speculation suggestion surmise system term

WEAK

apriority shot in the dark starting point tentative law

Antonyms

STRONGEST

fact proof reality truth

WEAK

calcualtion measurement

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.

Its goal was to test the hypothesis: Does using hormone therapy decrease the risk of heart disease?

From MarketWatch • May 12, 2026

"Our working hypothesis is that there's probably a couple of different types of transmission that might be happening," Van Kerkhove told BBC Breakfast on Tuesday.

From BBC • May 5, 2026

This unsettling idea is what defines the Boltzmann brain hypothesis.

From Science Daily • May 3, 2026

“My hypothesis is that we absolutely crushed our first and second quarters, with growth rates that I’m not sure we’ve ever seen before,” he said.

From Barron's • Apr. 30, 2026

This hypothesis, too, has failed to stir enthusiasm.

From "1491" by Charles C. Mann

Vocabulary lists containing hypothesis

The SAT: Language of the Test, List 1

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100 Top "SAT" Words

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Tier 2 Words for the SBAC ELA Items

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