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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.

In May 2025, Ocean saw Sir David tackle mankind's "final frontier" once more.

From BBC • May 8, 2026

Palantir’s forward-deployed-engineer role — which entails sending employees directly to customer sites to create bespoke solutions — has risen in popularity among both legacy software giants and frontier AI labs.

From MarketWatch • May 4, 2026

As it turned out, training bleeding-edge, frontier A.I. models was very expensive.

From Slate • Apr. 30, 2026

The race is now on to create a frontier model.

From The Wall Street Journal • Apr. 29, 2026

In this last remnant of the American frontier, Hale was revered as the “King of the Osage Hills.”

From "Killers of the Flower Moon" by David Grann




Vocabulary lists containing frontier