proving ground

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.

The mine was restarted as a proving ground for Rio Tinto’s RIO 2.74%increase; green up pointing triangle new method of unlocking low-grade copper deposits.

From The Wall Street Journal • Jan. 15, 2026

The 1988 protests were a proving ground for activists, some still challenging military rule today.

From Barron's • Dec. 23, 2025

But, the thinking went, there is a perfect proving ground conveniently circling the Earth, never more than about three days’ travel time away.

From Slate • Dec. 9, 2025

Kennedy is hopeful that the Celtic Challenge, a cross-border club competition with teams from Scotland, Ireland and Wales that launched in 2023, can provide a proving ground to rival England's PWR in time.

From BBC • Sep. 11, 2025

King Ogunwe hurried forward, as did the other commanders and the engineers, who had thrown open the doors and let the light flood out over the proving ground.

From "The Amber Spyglass" by Philip Pullman