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.

The last and smallest entry point is prediction platforms, through which investors can place money on a hypothesis.

From Barron's • Jun. 3, 2026

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

From MarketWatch • May 12, 2026

Some Argentinian officials have said that is their leading hypothesis, but nothing has yet been confirmed.

From BBC • May 11, 2026

Their work connects the Boltzmann brain hypothesis, the second law of thermodynamics, and the related "past hypothesis," which assumes the universe began in a state of low entropy.

From Science Daily • May 3, 2026

“I have asked that very same question. My current hypothesis is that it will, but ultimately, it will be a wait-and-see situation.”

From "The Very, Very Far North" by Dan Bar-el

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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