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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.

Mr. Crytzer—a specialist on the history of the American frontier, the author of a book on the Whiskey Rebellion and a teacher at Robert Morris University—begins “The National Road” with Washington.

From The Wall Street Journal • Apr. 24, 2026

“It’s clear that for the largest frontier labs, there is no limit to their demand for CPUs,” Burke said.

From The Wall Street Journal • Apr. 24, 2026

Its daily work is to identify national security risks in those transactions, which involve high-profile, frontier technologies like robotics, autonomous systems, and biotechnology.

From Barron's • Apr. 22, 2026

All the most powerful and advanced AI models - known as frontier AI - are developed outside of the UK, with the top-tier companies based in the US or China.

From BBC • Apr. 21, 2026

On an October day in 1753, Robert Dinwiddie, Royal Governor of His Majesty’s Colony of Virginia, sat in his office in Williamsburg, the capital of Virginia, reading the latest reports from the frontier.

From "George Washington, Spymaster" by Thomas B. Allen




Vocabulary lists containing frontier