noun The area of ground where a battle is or was fought.
- Farmers still find old coins when they plow the battlefield each spring.
- A quiet memorial now stands in the middle of the battlefield.
- Tourists now visit the old battlefield to learn its history.
- Though in the past it saw much of the unhappiness and strife of Border warfare—the great battlefields of Pilleth and Mortimer's Cross are nearby—it is now a quiet and happy place.
— John D. Hewitt, The Kington Branch of the G.W.R (1939)
noun Figuratively, any arena of intense conflict or competition.
- The online shopping market has become a battlefield for small businesses.
- Social media can turn into a battlefield when people disagree strongly.
- The courtroom became a battlefield of legal arguments.