as in must
something necessary, indispensable, or unavoidable
an extensive grounding in mathematics is a sine qua non for a career in architecture
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Recent Examples of sine qua non
The sine qua non for an economic deal is that Ukrainian leadership wants a peace deal.
—
CBS News, 2 Mar. 2025
Some are fast to embrace the admittedly exciting bold new possibilities of Artificial Intelligence as the future sine qua non of effective schooling.
—Vicki Phillips, Forbes, 15 Jan. 2025
Season 2 fulfills this sine qua non with deceptive ease.
—Alison Herman, Variety, 7 Jan. 2025
Both machines must be designed for ridiculously demanding environments—the sine qua non is ultrafast and ultra-accurate logging and triage of billions of events per second in a typhoon of radiation under magnetic fields otherwise found only in MRI machines.
—Douglas McCormick, IEEE Spectrum, 18 Sep. 2012
See All Example Sentences for sine qua non
CBS News, 2 Mar. 2025
Some are fast to embrace the admittedly exciting bold new possibilities of Artificial Intelligence as the future sine qua non of effective schooling.
—Vicki Phillips, Forbes, 15 Jan. 2025
Season 2 fulfills this sine qua non with deceptive ease.
—Alison Herman, Variety, 7 Jan. 2025
Both machines must be designed for ridiculously demanding environments—the sine qua non is ultrafast and ultra-accurate logging and triage of billions of events per second in a typhoon of radiation under magnetic fields otherwise found only in MRI machines.
—Douglas McCormick, IEEE Spectrum, 18 Sep. 2012
See All Example Sentences for sine qua non
Recent Examples of Synonyms for sine qua non
Noun
-
Of course, a stroll across the Golden Gate Bridge is a must, as is a day trip to Muir Woods National Monument to stand beneath towering, centuries-old redwoods.—
Lauren Dana Ellman,
Travel + Leisure,
27 Oct. 2025
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After shifting power to the people—like a year-plus bus boycott can do, for example—and getting the government to lessen its corruption, cruelty, injustice or violence, defending those gains is a must.—
Michael Shank,
MSNBC Newsweek,
27 Oct. 2025
Noun
-
Qualls will face regular work reporting requirements, more frequent eligibility checks, as well as the quarterly wage checks that Louisiana Medicaid already conducts.—
NPR,
NPR,
25 Oct. 2025
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The chief appraiser then ensures each of the nominees are in good standing with the property tax code’s requirements.—
Rachel Royster,
Fort Worth Star-Telegram,
24 Oct. 2025
Noun
-
There is a necessity of bearing witness to our times, but there’s something dangerous about jumping on top of the most urgent thing and having that be the work.—
Literary Hub,
Literary Hub,
3 Nov. 2025
-
Bedding essentials like cooling mattresses, breathable sheets, and gel pillows are all necessities anytime of year to ensure a sweat-free sleep.—
Mariana Best,
Better Homes & Gardens,
31 Oct. 2025
Cite this Entry
“Sine qua non.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sine%20qua%20non. Accessed 7 Nov. 2025.
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