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Definitions

frontier

[fruhn-teer, fron-, fruhn-teer] / frʌnˈtɪər, frɒn-, ˈfrʌn tɪər /




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.

"This is kind of pushing the frontier of science," said Ryan Schultz, a seismologist specialised in man-made earthquakes.

From Barron's • May 11, 2026

The country is making efforts to ensure frontier checks take "less than a couple of minutes", she added.

From BBC • May 10, 2026

Central Seoul lies around 50 to 60 kilometres from the frontier, and much of Gyeonggi province -- South Korea's most populous, home to key industrial hubs -- would also fall within range.

From Barron's • May 8, 2026

Wharton School professor Ethan Mollick called the deal “a blow to the idea that Grok will remain a frontier model” in an X post.

From MarketWatch • May 6, 2026

He holed up alone, reading Zane Grey novels and wishing himself into them, a man and his horse on the frontier, broken off from the world.

From "Unbroken" by Laura Hillenbrand




Vocabulary lists containing frontier