as in borders
a region along the dividing line between two countries
the Apaches were once feared on both sides of the U.S.-Mexico frontier
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Recent Examples of frontiers
With it, organizations and ecosystems unlock a multiplier effect, where each contributor amplifies the others and opens new frontiers of innovation.
—
David Henkin, Forbes.com, 16 Sep. 2025
The ability to generate mid-infrared light efficiently could also open new frontiers in chemical and environmental analysis.
—Neetika Walter, Interesting Engineering, 13 Sep. 2025
In a decade that some critics believe has a shortage of newness and invention, slop is one of the few frontiers that’s actively being pushed.
—Kieran Press-Reynolds, Pitchfork, 10 Sep. 2025
Cupcake icing and sports drinks — in all their crayon-like colors — are the final frontiers for Nick Scheidler's team.
—Alina Selyukh, NPR, 8 Sep. 2025
Despite ongoing macroeconomic turmoil and market chaos, high-end design firms continue to open stores and deepen their presence in new frontiers.
—Sofia Celeste, Footwear News, 5 Sep. 2025
Yet no matter how powerful the technology becomes, there will always be frontiers only humans can cross.
—Marc Benioff, Time, 28 Aug. 2025
But perhaps nowhere is the study of literature, philosophy, the arts, and languages more valued, their spirit more authentically preserved, their frontiers more doggedly pursued, than at Chicago.
—Tyler Austin Harper, The Atlantic, 26 Aug. 2025
Space exploration is among the most exciting frontiers for humankind.
—James Cramer, Baltimore Sun, 20 Aug. 2025
David Henkin, Forbes.com, 16 Sep. 2025
The ability to generate mid-infrared light efficiently could also open new frontiers in chemical and environmental analysis.
—Neetika Walter, Interesting Engineering, 13 Sep. 2025
In a decade that some critics believe has a shortage of newness and invention, slop is one of the few frontiers that’s actively being pushed.
—Kieran Press-Reynolds, Pitchfork, 10 Sep. 2025
Cupcake icing and sports drinks — in all their crayon-like colors — are the final frontiers for Nick Scheidler's team.
—Alina Selyukh, NPR, 8 Sep. 2025
Despite ongoing macroeconomic turmoil and market chaos, high-end design firms continue to open stores and deepen their presence in new frontiers.
—Sofia Celeste, Footwear News, 5 Sep. 2025
Yet no matter how powerful the technology becomes, there will always be frontiers only humans can cross.
—Marc Benioff, Time, 28 Aug. 2025
But perhaps nowhere is the study of literature, philosophy, the arts, and languages more valued, their spirit more authentically preserved, their frontiers more doggedly pursued, than at Chicago.
—Tyler Austin Harper, The Atlantic, 26 Aug. 2025
Space exploration is among the most exciting frontiers for humankind.
—James Cramer, Baltimore Sun, 20 Aug. 2025
Recent Examples of Synonyms for frontiers
borders
Noun
-
Because of these frictions, more and more types of companies that function across borders are looking to stablecoins as practical tools.—
Aaron Stanley,
Forbes.com,
16 Sep. 2025
-
Her beauty is undeniable, but its borders are vague.—
Anahid Nersessian,
New Yorker,
15 Sep. 2025
Cite this Entry
“Frontiers.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/frontiers. Accessed 19 Sep. 2025.
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