1
as in concurrent
existing or occurring at the same period of time
the Alfred Lunt-Lynn Fontanne partnership was more or less coterminous with Broadway's golden age
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2
as in coinciding
occupying the same space
Massachusetts' Nantucket County isn't quite coterminous with the island of the same name, as the county includes two small nearby islets
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Recent Examples of coterminous
Politics are so digital at this point that the images saved on your phone are seen as coterminous with your personal beliefs.
—
Kyle Chayka, New Yorker, 2 July 2025
While colonial administrators imagined the West to be home to progress, order, and economic development, all of which were imagined as coterminous with whiteness, the East was imagined as its opposite.
—Zachariah Mampilly, Foreign Affairs, 1 Apr. 2025
The nation’s period of domestic bliss was practically coterminous with the presidency of James Monroe, a Democratic-Republican whose landslide victory in 1816 accelerated the Federalist Party’s collapse.
—Eli Wizevich, Smithsonian Magazine, 1 Dec. 2024
From the moment of her father’s death and her subsequent coronation—receiving the Crown of St. Edward on her head, and bearing its almost five pounds of weight upright for the next three hours—the vast dimensions of her status as queen were coterminous with the diminutive dimensions of her person.
—Rebecca Mead, The New Yorker, 30 Sep. 2024
This is a common attitude in competitive Duval County, which is coterminous with Jacksonville.
—Monica Potts, ABC News, 19 July 2024
And the court said that town boundaries and school districts being coterminous is unconstitutional and causes the problem, and that hasn’t changed.
—Alison Cross, Hartford Courant, 17 June 2024
Clearly, then, the gambit is designed to have, coterminous with Trump’s criminal prosecution by the Biden Justice Department’s special counsel, a parallel probe of the Bidens.
—Nr Editors, National Review, 15 Dec. 2023
Kyle Chayka, New Yorker, 2 July 2025
While colonial administrators imagined the West to be home to progress, order, and economic development, all of which were imagined as coterminous with whiteness, the East was imagined as its opposite.
—Zachariah Mampilly, Foreign Affairs, 1 Apr. 2025
The nation’s period of domestic bliss was practically coterminous with the presidency of James Monroe, a Democratic-Republican whose landslide victory in 1816 accelerated the Federalist Party’s collapse.
—Eli Wizevich, Smithsonian Magazine, 1 Dec. 2024
From the moment of her father’s death and her subsequent coronation—receiving the Crown of St. Edward on her head, and bearing its almost five pounds of weight upright for the next three hours—the vast dimensions of her status as queen were coterminous with the diminutive dimensions of her person.
—Rebecca Mead, The New Yorker, 30 Sep. 2024
This is a common attitude in competitive Duval County, which is coterminous with Jacksonville.
—Monica Potts, ABC News, 19 July 2024
And the court said that town boundaries and school districts being coterminous is unconstitutional and causes the problem, and that hasn’t changed.
—Alison Cross, Hartford Courant, 17 June 2024
Clearly, then, the gambit is designed to have, coterminous with Trump’s criminal prosecution by the Biden Justice Department’s special counsel, a parallel probe of the Bidens.
—Nr Editors, National Review, 15 Dec. 2023
Recent Examples of Synonyms for coterminous
Adjective
-
The college has enrolled 3,412 high school students in concurrent credit classes, according to the release.—
Edward McKinnon,
Arkansas Online,
28 Jan. 2026
-
On its second day, however, there was a sharp drop-off in peak concurrent players on Steam, as Highguard didn’t break 20,000 on day 2.—
Paul Tassi,
Forbes.com,
28 Jan. 2026
Adjective
-
For his last runway collection, unveiled in September, Michele constructed a parallel universe of side-by-side shows separated by a wall that when lifted revealed twins in identical looks in synchronic stride.—
Colleen Barry,
Fortune,
24 Nov. 2022
-
With a lockable synchronic-tilt mechanism and special Z-Shape design, the Kaiser 2 can accommodate a weight up to 180kg, quite a bit more than normal mechanisms on office chairs and the back can be reclined to an angle of 160 degrees which can be locked when not in rocking mode.—
Mark Sparrow,
Forbes,
11 Oct. 2021
Adjective
-
Regional banks bounced a bit, still down a couple percent on the week, as Thursday’s flush lower amid a few separate but coincident credit hiccups exacerbated underlying unease with the opaque and possibly lax lending across private credit and among smaller commercial banks.—
Michael Santoli,
CNBC,
17 Oct. 2025
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The coincident new Moon contributes no light pollution, making 2025 ideal for Orionid viewing.—
Big Think,
Big Think,
13 Oct. 2025
Adjective
-
More than half the day has to be live for it to be considered synchronous.—
Jenny Porter Tilley,
IndyStar,
26 Jan. 2026
-
So instead, to keep costs down and power up, the Starcloud satellite flies what is known as a dawn-dusk sun-synchronous orbit, circling the planet at a near vertical 83° angle that carries it over the poles and keeps it almost constantly exposed to the sun.—
Jeffrey Kluger,
Time,
7 Jan. 2026
Adjective
-
Across three conversations with leaders working in human rights, social innovation, and critical infrastructure, the underlying premise was clear.—
Monica Sanders,
Forbes.com,
25 Jan. 2026
-
The underlying allegations of this investigation are particularly fraught with danger for the state police and its leadership.—
Kevin Rennie,
Hartford Courant,
24 Jan. 2026
Adjective
-
Any resemblance to real-life movements of the mid-20th century that edged into being considered cults was, er, coincidental.—
David Fear,
Rolling Stone,
22 Jan. 2026
-
So to me, all of this is not a totally coincidental match.—
Lily Ford,
HollywoodReporter,
12 Jan. 2026
Adjective
-
In the 1800s, for example, the German philosopher Georg Wilhelm Friedrich Hegel used the term Zeitgeist—the spirit of times—to refer to such ubiquitous and overlapping influences that operate across both macro and micro levels.—
Maria Balaska,
Time,
20 Dec. 2025
Adjective
-
Beyond this subset of works, the chipmunk paintings are also coextensive with the entire body and thrust of her production.—
Sarah Lehrer-Graiwer,
Artforum,
1 Oct. 2024
-
Being online was not coextensive with being alive.—
Harper’s Magazine ,
Harper’s Magazine ,
22 June 2022
Cite this Entry
“Coterminous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/coterminous. Accessed 30 Jan. 2026.
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