proving ground
nounUK /ˈpruːvɪŋ ɡraʊnd/
US /ˈpruːvɪŋ ɡraʊnd/
A place where people test new things to see if they work.
The desert is a proving ground for new cars.
RELATED WORDS
OTHER MEANINGS
2. A place where soldiers practice and are tested.
The army used the hills as a proving ground for new recruits.
3. A situation or job where someone's skills are tested.
The busy kitchen was a proving ground for young chefs.
4. An area used to test weapons or machines.
The remote island served as a proving ground for rockets.