frontiers

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pyongyang closed its borders in January 2020 to stop the spread of the coronavirus, with research and media reports indicating that the diplomatically isolated nation spent subsequent years bolstering security along its frontiers.

From Barron's • Apr. 28, 2026

Gene therapy, which introduces new instructions into the body to treat the root cause of a disease, has been one of medicine’s most promising frontiers.

From The Wall Street Journal • Apr. 23, 2026

It also snapped up new talent — and new exploration frontiers — when it acquired Hess last year.

From MarketWatch • Mar. 3, 2026

But the EU border agency said last year that it was reviewing 12 cases of potential human rights violations by Greece, including some allegations that migrants seeking asylum were pushed back from Greece's frontiers.

From BBC • Feb. 4, 2026

“We were expanding beyond ourselves, beyond our own planet, pushing back frontiers, bettering ourselves.”

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel