A foe; an adversary. A private enemy is one who hates another and wishes him injury, or attempts to do him injury to gratify his own malice or ill will. A public enemy or foe, is one who belongs to a nation or party, at war with another. I say to you, love your enemies. Matthew 5:44. Enemies in war; in peace friends.

One who hates or dislikes; as an enemy to truth or falsehood.

In theology, and by way of eminence, the enemy is the Devil; the archfiend.

In military affairs, the opposing army or naval force in war, is called the enemy.