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
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
The great flaw in that theory is the supposition of logic in humans.
—Yeo Boon Ping, CNBC, 11 July 2025
That's a double-digit decline compared to the same three months of last year—itself no peach of a quarter for a car company with a stratospheric valuation based on the supposition of eternal sales growth.
—ArsTechnica, 2 July 2025
See All Example Sentences for supposition
Holden Seidlitz, New Yorker, 5 Aug. 2025
But that premise assumes two suppositions not in evidence.
—Andre Mouchard, Oc Register, 4 Aug. 2025
The great flaw in that theory is the supposition of logic in humans.
—Yeo Boon Ping, CNBC, 11 July 2025
That's a double-digit decline compared to the same three months of last year—itself no peach of a quarter for a car company with a stratospheric valuation based on the supposition of eternal sales growth.
—ArsTechnica, 2 July 2025
See All Example Sentences for supposition
Recent Examples of Synonyms for supposition
Noun
-
Additional tests of the hypothesis are likely to follow.—
Ian Randall,
MSNBC Newsweek,
6 Nov. 2025
-
This is known as the photoprotection hypothesis.—
Nell Greenfieldboyce,
NPR,
5 Nov. 2025
Noun
-
Whether that response is genuine is now anybody’s guess.—
Dalton Ross,
Entertainment Weekly,
6 Nov. 2025
-
Hundreds of users were making guesses about where Sahara learned the sign for more in the comments.—
Daniella Gray,
MSNBC Newsweek,
5 Nov. 2025
Noun
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Calculated under standard assumptions, this revenue would cover about two-thirds of the primary deficit impact of the One Big Beautiful Bill Act (OBBBA) over the next five years—more if temporary OBBBA provisions expire on schedule.—
Nick Lichtenberg,
Fortune,
4 Nov. 2025
-
Whoever wins, assumptions about what matters in politics are taking a beating.—
Newsweek Staff,
MSNBC Newsweek,
4 Nov. 2025
Noun
-
The special explores theories about why the thieves targeted specific displays, who orchestrated this brazen operation and which fatal flaws in their plan ultimately led to their capture.—
Peter White,
Deadline,
5 Nov. 2025
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The showgirl theory also holds in that fashion diapers seem to have taken off almost only among celebrities.—
Julie Beck,
The Atlantic,
5 Nov. 2025
Noun
-
Karl Popper said that science is about conjecture and refutation.—
David Wingrave,
Harpers Magazine,
24 Oct. 2025
-
These can require more unraveling, and the further back one goes, the more conjecture there is.—
Literary Hub,
Literary Hub,
20 Oct. 2025
Noun
-
My senior thesis in college was a sculpture show.—
Literary Hub,
Literary Hub,
3 Nov. 2025
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As artificial intelligence disrupts software and traditional tech cycles, many VCs are being forced to rethink their investment theses.—
Nia Bowers,
USA Today,
3 Nov. 2025
Noun
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The propositions really re-regulate the way new developments and buildings are approved.—
Kim Velsey,
Curbed,
5 Nov. 2025
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Opening a business with 2% margins in a city that already gets top scores for equitable access to groceries sounds like a losing proposition.—
Diane Brady,
Fortune,
4 Nov. 2025
Cite this Entry
“Supposition.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supposition. Accessed 8 Nov. 2025.
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