- a person hostile or opposed to a policy, cause, person, or group, esp one who actively tries to do damage; opponent
- an armed adversary; opposing military force
- (as modifier): enemy aircraft
- a hostile nation or people
- (as modifier): an enemy alien
- something that harms or opposes; adversary: courage is the enemy of failure
Related adjective(s): inimical
Etymology: 13th Century: from Old French enemi, from Latin inimīcus hostile, from in-1 + amīcus friend