on/under/with the assumption
idiom
: as though one knows : in the belief
We are operating on/under/with the assumption that the loan will be approved.
Examples of on/under/with the assumption in a Sentence
Recent Examples on the Web
The analyst’s more conservative estimate was based on the assumption that fewer tickets will be issued as drivers become aware of the restriction.
—
San Diego Union-Tribune, Mercury News, 13 June 2025
Neither the Texas health department nor the CDC recommends the MMR vaccine for adults born before 1957, Hotez notes, riding on the assumption that measles exposure was common in the first half of the 20th century and that exposure would have led to enduring immunity.
—Asuka Koda, CNN Money, 5 June 2025
Mass incarceration, which swept the country in the late twentieth century, rested on the assumption that a person spoiling for a fight with another person was weighing costs: that the difference between ten years and twenty-five would matter.
—Malcolm Gladwell, New Yorker, 2 June 2025
For an industry long built on the assumption of constant growth, that’s a profound shift.
—Robert Rapier, Forbes.com, 23 May 2025
See All Example Sentences for on/under/with the assumption
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.
San Diego Union-Tribune, Mercury News, 13 June 2025
Neither the Texas health department nor the CDC recommends the MMR vaccine for adults born before 1957, Hotez notes, riding on the assumption that measles exposure was common in the first half of the 20th century and that exposure would have led to enduring immunity.
—Asuka Koda, CNN Money, 5 June 2025
Mass incarceration, which swept the country in the late twentieth century, rested on the assumption that a person spoiling for a fight with another person was weighing costs: that the difference between ten years and twenty-five would matter.
—Malcolm Gladwell, New Yorker, 2 June 2025
For an industry long built on the assumption of constant growth, that’s a profound shift.
—Robert Rapier, Forbes.com, 23 May 2025
See All Example Sentences for on/under/with the assumption
Cite this Entry
“On/under/with the assumption.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%2Funder%2Fwith%20the%20assumption. Accessed 30 Jun. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share