enemy

noun

en·​e·​my ˈe-nə-mē 

plural enemies

1

: one that is antagonistic to another

especially : one seeking to injure, overthrow, or confound an opponent

2

: something harmful or deadly

alcohol was his greatest enemy

3

a

: a military adversary

b

: a hostile unit or force

Synonyms

• adversary
• antagonist
• foe
• hostile
• opponent

Examples of enemy in a Sentence

He made a lot of enemies during the course of his career.

Tradition is the enemy of progress.

Recent Examples on the Web

As the resupply convoys approach the forward locations, they are frequently targeted and destroyed by enemy drones. —Vikram Mittal, Forbes.com, 6 June 2025

Watch Prey on Hulu Predator The original Predator movie is set in the present day (which would be 1987) and follows a paramilitary rescue team who quickly discovers that rebel forces in the South American jungle aren’t their most dangerous enemy. —Keith Langston, People.com, 6 June 2025

Positioning units correctly is as important as (if not more than) using the right weapons and skills on the enemy forces. —Fran Ruiz, Space.com, 5 June 2025

As major Cold War events like the Cuban Missile Crisis, the space race, and the Vietnam War fueled American anxieties and obsessions about Soviet power, the spirit found a way to slip past political divisions and into American homes—despite its connections with the Soviet enemy. —Time, 4 June 2025

Word History

Etymology

Middle English enmy, enemi, borrowed from Anglo-French enemi, going back to Latin inimīcus, noun derivative of inimīcus, adjective, "of an opponent, unfriendly, hostile," from in- in- entry 1 + amīcus "friendly, well-disposed, loving" — more at amiable

First Known Use

13th century, in the meaning defined at sense 1

Phrases Containing enemy

• behind enemy lines
• enemy territory
• mortal enemy
• public enemy number one

Kids Definition

enemy

noun

en·​e·​my ˈen-ə-mē 

plural enemies

1

: one that tries to hurt or overthrow or that seeks the failure of another

2

: something that harms

3

a

: a nation with which a country is at war

b

: a military force or a person belonging to such a nation

Etymology

Middle English enemi "enemy," from early French enemi (same meaning), from Latin inimicus (same meaning), from in- "not" and amicus "friend"