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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.

CEO Nikesh Arora said in a press release that the “latest advancements at the AI frontier have increased the level of urgency around cybersecurity.”

From MarketWatch • Jun. 2, 2026

The compression of history in “This Land” is no more evident than in the filmmakers’ use of the Donner Party to introduce the Golden State as a frontier to be conquered.

From The Wall Street Journal • Jun. 2, 2026

"The cultural conversation they were having in 2019 about identity, queerness, mental health, is now the conversation everyone is having everywhere, so the show no longer feels like a frontier."

From BBC • May 30, 2026

In the model, the “availability” phase entailed contact and small-scale movements across the frontier, with trading relationships and marriage alliances, for example, forming gradually.

From Science Daily • May 30, 2026

The jet rose in darkness, humming with energy and God-strength beneath Bull Meecham as he climbed toward his pale, his frontier, as the earth grew puny around him.

From "The Great Santini" by Pat Conroy




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