proving ground

1. 1.

   a workplace for testing new equipment or ideas

   Broaderworkplace

Questions about proving ground

What does proving ground mean?

proving ground means "a workplace for testing new equipment or ideas".

Is proving ground a common word?

proving ground is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.