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
as in assumption
something taken as being true or factual and used as a starting point for a course of action or reasoning
worthless genetic research that was based on the erroneous supposition that acquired characteristics can be passed on to offspring
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Example Sentences
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Recent Examples of supposition
One of the big suppositions behind the big data center boom is that the most cutting edge AI models will be at least as large, if not larger, than the leading models that exist today.
—
Jeremy Kahn, Fortune, 3 Sep. 2025
That kind of supposition is for amateurs.
—Sherry Kuehl, Kansas City Star, 6 Aug. 2025
She’s bemused by suppositions about the advantages of her family legacy, which in reality boasts a centuries-deep ledger of addiction, estrangement, and untimely death.
—Holden Seidlitz, New Yorker, 5 Aug. 2025
But that premise assumes two suppositions not in evidence.
—Andre Mouchard, Oc Register, 4 Aug. 2025
See All Example Sentences for supposition
Jeremy Kahn, Fortune, 3 Sep. 2025
That kind of supposition is for amateurs.
—Sherry Kuehl, Kansas City Star, 6 Aug. 2025
She’s bemused by suppositions about the advantages of her family legacy, which in reality boasts a centuries-deep ledger of addiction, estrangement, and untimely death.
—Holden Seidlitz, New Yorker, 5 Aug. 2025
But that premise assumes two suppositions not in evidence.
—Andre Mouchard, Oc Register, 4 Aug. 2025
See All Example Sentences for supposition
Recent Examples of Synonyms for supposition
Noun
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The story of the Platonic representation hypothesis paper began in early 2023, a turbulent time for AI researchers.—
Ben Brubaker,
Quanta Magazine,
7 Jan. 2026
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Furthermore, Jie said that laboratory simulations support the hypothesis that the majority of the surface regolith inside Shackleton Crater is conducive to the stable preservation of water ice.—
Leonard David,
Space.com,
6 Jan. 2026
Noun
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As for their final guesses, Robin Thicke chose Keke Palmer, McCarthy-Wahlberg opted for Leslie Jones, and Ken Jeong picked Wanda Sykes.—
Lauren Huff,
Entertainment Weekly,
15 Jan. 2026
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Fans are encouraged to dress in blue or pink to cast their guesses, while Sierota plans to wear purple — a playful nod to keeping the secret.—
Holly Alvarado,
Daily News,
14 Jan. 2026
Noun
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Scientists have uncovered a previously unthinkable state of matter that challenges decades of assumptions about how electrons behave, opening novel possibilities for quantum computing, sensing and advanced materials.—
Georgina Jedikovska,
Interesting Engineering,
14 Jan. 2026
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Most importantly, the reader’s assumptions have changed.—
JD Barker,
Rolling Stone,
14 Jan. 2026
Noun
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Those are, indeed, pat, credible theories and predictions.—
Théoden Janes,
Charlotte Observer,
8 Jan. 2026
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But now, in the planet’s capital city of Apperax, a murder is committed with no suspects, forensics or theories.—
Aaron Couch,
HollywoodReporter,
8 Jan. 2026
Noun
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There are no corrections of consequence in this new world, so a simple short-selling conjecture is too good to check out.—
Jim Cramer,
CNBC,
21 Dec. 2025
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The Year in Computer Science Explore the year’s most surprising computational revelations, including a new fundamental relationship between time and space, an undergraduate who overthrew a 40-year-old conjecture, and the unexpectedly effortless triggers that can turn AI evil.—
Jordana Cepelewicz,
Quanta Magazine,
18 Dec. 2025
Noun
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His eyes lit up, as if asked to present a thesis sitting in his top drawer.—
Ira Winderman,
Sun Sentinel,
13 Jan. 2026
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The Skydance thesis, according to a person who worked closely with David, was that Hollywood wasn’t prepared for the overwhelming economic force of a Silicon Valley billionaire throwing around his wealth and ambition.—
Reeves Wiedeman,
Vulture,
12 Jan. 2026
Noun
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So the complete value proposition of society is different on the island.—
Dalton Ross,
Entertainment Weekly,
7 Jan. 2026
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For families Atlantis’s central proposition is family fun, and a stay at The Cove will position a family to make the most of it.—
Jesse Ashlock,
Condé Nast Traveler,
7 Jan. 2026
Cite this Entry
“Supposition.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supposition. Accessed 15 Jan. 2026.
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