An Enemy

1. Someone who is hostile to, feels hatred towards, opposes the interests of, or intends injury to someone else.

Synonyms: foe, unfriend, adversary, nemesis, backfriendAntonyms: ally, friend

2. A hostile force or nation; a fighting member of such a force or nation.

Synonyms: foe, adversary, nemesisAntonyms: ally, friend

3. Something harmful or threatening to another
4. (attributive) Of, by, relating to, or belonging to an enemy.
5. (video games) A non-player character that tries to harm the player.

Usage notes

• Singular and plural verbs can be used interchangeably when referring to sense 2, e.g. the enemy are retreating vs. the enemy is retreating.