frontier

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.

That frontier between light and darkness is known as the terminator.

From BBC • Apr. 3, 2026

Still, he was eager to explore a fresh frontier.

From Los Angeles Times • Apr. 1, 2026

North Korea's abrupt border closure in 2020 stranded many of them abroad for years, and Pyongyang later beefed up defences along the frontier to dissuade illegal crossings.

From Barron's • Mar. 29, 2026

“We continue to believe it is highly unlikely that tools from the frontier labs will displace cybersecurity vendors, particularly those that primarily provide solutions that do real-time detection & response,” D.A.

From MarketWatch • Mar. 27, 2026

As one of the world's top pilots, she knew that the next aviation frontier was space.

From "Women in Space" by Karen Bush Gibson