supposition
Americannoun
-
the act of supposing
-
a fact, theory, etc, that is supposed
Other Word Forms
- nonsuppositional adjective
- nonsuppositionally adverb
- suppositional adjective
- suppositionally adverb
- suppositionless adjective
- unsuppositional adjective
Etymology
Origin of supposition
First recorded in 1400–50; late Middle English, from Latin suppositiōn- (stem of suppositiō ) “substitution” ( English meaning by association with suppose ), equivalent to supposit(us) (past participle of suppōnere “to substitute”) + -iōn- stem of noun suffix -io; -ion, sup-, position
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The investor supposition was they likely wouldn’t become acquisition targets.
From Barron's • Sep. 26, 2025
There’s some supposition, including from Ourand at Puck, that the heat here stems from Disney’s secretive plan to establish a streaming-specific digital service, Venu Sports, in partnership with Warner Bros. and Fox.
From Slate • Sep. 7, 2024
You might leave the enjoyable “Sangre de Nopal/Blood of the Nopal” scratching your head over the supposition of the primacy of an art and science “collision.”
From Los Angeles Times • Aug. 29, 2024
But efforts to tamp down rumors and supposition may have backfired after royal observers noticed inconsistencies in the photo’s details.
From Seattle Times • Mar. 10, 2024
This is a supposition, albeit a reasonable one.
From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
