Synonyms of frontiers

frontiers

noun

plural of frontier

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

Synonyms & Similar Words

• borders
• borderlands
• marches
• no-man's-lands

Example Sentences

Recent Examples of frontiers

The show explores the rich frontiers of canon, creating narrative threads to expand and accentuate the people, planets, and purpose of the Star trek universe. — Sergio Pereira, Space.com, 26 Sep. 2026

It was named after the Emperor Hadrian, who toured the northern provinces of Germany and Britain in 121–122 to consolidate the empire’s frontiers. — Matthew Wills, JSTOR Daily, 21 Sep. 2026

Pelvic floor training, long shrugged off as a women’s thing, has become one of the more interesting frontiers in men’s health, with real data behind it for erectile function, ejaculation control, bladder issues and post-prostate-surgery recovery. — Samantha Agate, Fort Worth Star-Telegram, 16 Sep. 2026

European leaders convene in Finland’s Arctic capital as melting ice opens new shipping lanes and resource frontiers, intensifying Russian military activity and exposing doubts about NATO’s long-term role in regional security. — Los Angeles Times, 14 Sep. 2026

One professor reflects on how the invention of sailing ships led to new discoveries and commercial frontiers on the one hand and disease, colonization, and slavery on the other. — Scott Tobias, Vulture, 11 Sep. 2026

Cruise the Kimberley The Kimberley, in Australia’s far northwest, is often described as one of the world’s last wilderness frontiers. — Stuart Rigg, Travel + Leisure, 4 Sep. 2026

Fortunately, with the rapid advancements in AI, researchers are now able to make progress on new frontiers. — Dr. Sai Balasubramanian, Forbes.com, 30 Aug. 2026

Meanwhile, instead of doubling down on pushing the frontiers of space science, NASA has pushed hard to gut the agency’s science budget for several years now. — Victor Tangermann, Futurism, 26 Aug. 2026