An enemy is a hostile opponent, like your sworn Scrabble enemy who vows to get revenge on your last triple word score.

An enemy is a person who actively opposes someone or something. The Latin word inimicus, meaning "hostile, unfriendly," is the root of enemy, and it comes from the prefix in-, or "not," and amicus, "friend:" an enemy is "not a friend." When two armies fight each other, they both think of the opposing army as the enemy.

Definitions of enemy

n a personal enemy

ally, friend
an associate who provides cooperation or assistance
mortal enemy
an enemy who wants to kill you
Type of:
challenger, competition, competitor, contender, rival
the contestant you hope to defeat

n an opposing military force

“the enemy attacked at dawn”
Type of:
force, military force, military group, military unit
a unit that is part of some military service

n an armed adversary (especially a member of an opposing military force)

“a soldier must be prepared to kill his enemies
foe, foeman, opposition
an enemy who lays siege to your position
Type of:
adversary, antagonist, opponent, opposer, resister
someone who offers opposition

n any hostile group of people

“he viewed lawyers as the real enemy
Type of:
(plural) any group of human beings (men or women or children) collectively

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