battlefield
n. countable C1 Advanced Oxford US //ˈbætəɫˌfiɫd// UK //bˈætəlfˌiːld// bat·tle·field
n. a piece of land where a fight or war happens. It can also describe a situation where people are arguing or competing very hard.
n. a location where a military engagement or battle occurs; figuratively, any arena of intense conflict or competition.
The soldiers marched across the muddy battlefield.
Historians visited the ancient battlefield to study the remains of the defensive trenches used during the war.
The courtroom became a metaphorical battlefield where lawyers fought a high-stakes legal war over the company's intellectual property rights.
From battle + field.