Definition of suppositionnext
1
as in hypothesis
an idea that is the starting point for making a case or conducting an investigation my supposition is that this grape variety, which flourishes in southern France, should do equally well here, given the similar climate

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2
as in guess
an opinion or judgment based on little or no evidence it's pure supposition on your part that there's something illegal going on next door

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3

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of supposition Under California law, fraud must be pled with particularity, meaning there must be specifics and details in the complaint; generalizations, inferences and supposition don’t cut it. Michael McCann, Sportico.com, 16 Jan. 2026 The nature of Tech’s loss only supports the supposition that, without Texas and Oklahoma, the Big 12 is sorely lacking in top-tier talent. Kevin Sherrington jan. 1, Dallas Morning News, 1 Jan. 2026 Both Ripa and Consuelos rejected the supposition, with Ripa admitting that the only evening during which Consuelos looks presentable during the holidays is Christmas Eve. Joey Nolfi, Entertainment Weekly, 21 Nov. 2025 Slavik knocked Combs for lining up speaking engagements for as soon as next week with the supposition that he’d be released. Nicki Brown, CNN Money, 4 Oct. 2025 See All Example Sentences for supposition
Recent Examples of Synonyms for supposition
Noun
  • The interest rate hypothesis points the wrong direction — the most rate-sensitive occupations, like construction, have the lowest AI exposure.
    Nick Lichtenberg, Fortune, 27 June 2026
  • Science is designed to estimate risk, test hypotheses, identify patterns, and reduce the likelihood of false causal inference.
    Alex Smolak, STAT, 27 June 2026
Noun
  • Understanding how systems, applications and services connect to business operations is what separates a coordinated recovery from a guess.
    Michael Campbell, Forbes.com, 29 June 2026
  • Considering her Season 1 character Mia, aka Lady Vengeance, a serial killer by night and sommelier by day, was killed while jailed, is anyone’s guess.
    Rosy Cordero, Deadline, 29 June 2026
Noun
  • Here is a brief overview and judgement calls of several garden insects that challenge our assumptions about who belongs in which column.
    Rita Perwich, San Diego Union-Tribune, 4 July 2026
  • As with any heat metric, calculating the heat index involves making some assumptions about the person and the conditions around them.
    Andrew Freedman, CNN Money, 3 July 2026
Noun
  • Germ theory also emerged in the late 1800s, in which scientists discovered that germs caused disease.
    Melissa Rudy, FOXNews.com, 3 July 2026
  • The two budding geniuses would sit in Charles’ apartment for hours, talking music theory and analyzing records, though Jones’s curiosity occasionally exhausted Charles.
    Hadley Hall Meares, Vanity Fair, 3 July 2026
Noun
  • By these arguments, an AI proof of a mathematical conjecture that has stubbornly resisted human efforts would be useful only if comprehensible to humans.
    Benjamin Skuse, IEEE Spectrum, 25 June 2026
  • After weeks of such conjecture, multiple outlets as well as South Florida Sun Sentinel sources now say that Celtics’ forward Jaylen Brown is on the table in trade talks, with the notion of adding more than draft capital as a Milwaukee Bucks focus.
    Ira Winderman, Sun Sentinel, 22 June 2026
Noun
  • GameStop's takeover pursuit adds a headline catalyst, but the more durable thesis is that eBay's own operating momentum is improving.
    Tony Zhang, CNBC, 1 July 2026
  • The thesis rests on a claim that would have sounded absurd a year ago.
    Boaz Sobrado, Forbes.com, 1 July 2026
Noun
  • Its value proposition is strong since each trim comes with a long list of standard features.
    Charles Singh, USA Today, 2 July 2026
  • The property experience, the digital experience and the value proposition all become searchable, summarized and compared.
    Jeff Fromm, Forbes.com, 2 July 2026

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Cite this Entry

“Supposition.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supposition. Accessed 5 Jul. 2026.

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