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
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
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
See All Example Sentences for supposition
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
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
See All Example Sentences for supposition
Recent Examples of Synonyms for supposition
Noun
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Then a perusal of several studies that spanned decades and oceans made my hypothesis cloudy enough to blot out that April Fools’ Day moon.—
Doug Turnbull,
AJC.com,
12 Apr. 2026
-
Even as a unifying hypothesis was forming, the disease remained an enigma.—
Courtney Crowder,
USA Today,
10 Apr. 2026
Noun
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Thomas said games included a scavenger hunt, pond game, jelly bean count guess, egg spoon race, ring toss and bean bag toss.—
Elizabeth Marie Himchak,
San Diego Union-Tribune,
7 Apr. 2026
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How long humans and organizations will be able to maintain this delicate balance is anyone’s guess.—
Greg Mellen,
Oc Register,
6 Apr. 2026
Noun
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The cut is purportedly because of an assumption that online classes cost less than in-person classes, but was introduced at the last minute, with no data to support the claim.—
Jill Penn,
AJC.com,
8 Apr. 2026
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Likewise, Dutcher is operating under the assumption that those not in the portal on Tuesday intend to return; SDSU officials are finalizing revenue-sharing contracts with them.—
Mark Zeigler,
San Diego Union-Tribune,
8 Apr. 2026
Noun
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An alternative theory is that Vermeer employed one of his daughters, Maria, as the model.—
Anthony Lane,
New Yorker,
13 Apr. 2026
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Nichols was ready to share with jurors his theory of what happened to Kim Langwell the evening she was murdered.—
Peter Van Sant,
CBS News,
12 Apr. 2026
Noun
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At the same time, money market account interest rates are variable, so some conjecture will be required when trying to calculate the interest-earning capacity of an $80,000 deposit.—
Matt Richardson,
CBS News,
2 Apr. 2026
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Network executives emphasized that unless Woods or his team publicly address his situation, broadcasters will avoid discussing unconfirmed details or engaging in conjecture.—
Rowan Fisher-Shotton,
MSNBC Newsweek,
30 Mar. 2026
Noun
-
But the bearish thesis appears to be priced in.—
Michael Khouw,
CNBC,
9 Apr. 2026
-
From thesis to platform The project began as an undergraduate thesis by David Bershadsky.—
Aamir Khollam,
Interesting Engineering,
9 Apr. 2026
Noun
-
The bond election is comprised of four propositions, A through D.—
Nathalie Marie Palacios,
CBS News,
12 Apr. 2026
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Getting somewhere by plane has always been an onerous proposition.—
Kaitlyn Tiffany,
The Atlantic,
10 Apr. 2026
Cite this Entry
“Supposition.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supposition. Accessed 15 Apr. 2026.
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