battleground

noun

1. the field or ground on which a battle is fought.
2. an area of contention, conflict, or hostile opposition: During that era the classroom became a battlefield of incompatible ideologies.

noun

1. the place where a battle is fought; an area of conflict

n.

1812, from battle (n.) + field (n.). The usual word for it in Old English was wælstow, literally “slaughter-place.”