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 critical window hypothesis has emerged from re-analysis of WHI data itself, not from pharmaceutical research.
    Torie Bosch, STAT, 2 May 2026
  • Six months ago, people arguing that AI was a bubble were pointing to real-world facts, whereas people arguing against the bubble hypothesis were making speculative promises about the future.
    Rogé Karma, The Atlantic, 1 May 2026
Noun
  • In addition, however, many pitched their guesses as to who the governor was referring to, providing a pretty solid lists of potential candidates for coronation.
    Kaitlyn McCormick, USA Today, 29 Apr. 2026
  • Which company will win the AI race is anybody’s guess.
    Matteo Wong, The Atlantic, 28 Apr. 2026
Noun
  • Over time, this creates a foundation for a feedback loop in which incentive programs can be designed and optimized based on measurable outcomes rather than assumptions.
    Daniel Fusch, USA Today, 29 Apr. 2026
  • The important thing is that infinity is no longer the default assumption.
    Quanta Magazine, Quanta Magazine, 29 Apr. 2026
Noun
  • The adult world is studied and emulated in a manner that suggests praxis but no theory.
    Anna Wiener, New Yorker, 4 May 2026
  • There is one theory that people may outlive their physical bodies but there may be a way to upload their consciousness into a digital realm where human existence could go on indefinitely.
    John Ramos, CBS News, 3 May 2026
Noun
  • So, how do Peñarrubia and Nadler know this isn't just some clever mathematical conjecture?
    Paul Sutter, Space.com, 20 Apr. 2026
  • Like an enzyme that works as a catalyst to speed up a chemical reaction, collaboration ignites new ideas for conjectures.
    Chase Hunter, Mercury News, 19 Apr. 2026
Noun
  • Here Hathaway is divine and deceptive in equal measure, offering a kind of thesis statement for her whole deal as an actress.
    Chris Feil, Vulture, 1 May 2026
  • Even so, Jefferies said this wasn't part of their Buy thesis on the stock and that SERENA-6 was only a small part of the company's $80 billion 2030 sales goal.
    Elsa Ohlen, CNBC, 1 May 2026
Noun
  • An entry level car rental in summer can soar well above $500 per day, so this is a serious value proposition.
    Condé Nast, Condé Nast Traveler, 3 May 2026
  • Fort Worth voters approved the city's full $845 million bond package on Saturday, signing off on all six propositions aimed at funding a wide range of infrastructure and community projects.
    Sergio Candido, CBS News, 3 May 2026

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Cite this Entry

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

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