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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.

Back in the early 1990s, the U.S. still represented the game’s pioneer frontier.

From The Wall Street Journal • Jun. 11, 2026

But that historic advantage is now being challenged on a new frontier: artificial intelligence.

From MarketWatch • Jun. 9, 2026

“The lineup reaffirms Apple’s ‘asset-light’ approach to AI versus the in-house builds of frontier labs and hyperscalers,” Oppenheimer analyst Martin Yang wrote in a research note.

From Barron's • Jun. 9, 2026

In that environment, the helmets may have been intended for local militias, forces serving the Kingdom of Valencia, or armed groups responsible for defending the region's maritime frontier.

From Science Daily • Jun. 8, 2026

He even managed to get Nate a frontier shirt, one of the tie-front shirts most of the men in the army wore with pride.

From I Survived the American Revolution, 1776 by Lauren Tarshis




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