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 of enemy

• opponent
• foe
• hostile

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

The star of the cache was a near-complete Iron Age battle trumpet, or carnyx — used to blare eerie sounds in battle and rally troops against the enemy. —Andrea Margolis, FOXNews.com, 6 Feb. 2026

Davie’s successor will inherit an organization wrestling with its place in a media ecosystem dominated by overseas tech giants, as well as battling enemies closer to home, with conservative politicians and media proprietors wishing to see the BBC diminished during charter renewal. —Jake Kanter, Deadline, 5 Feb. 2026

Faucets and Plumbing Fixtures Put simply, water and friction are paint’s worst enemies. —Asia London Palomba, The Spruce, 5 Feb. 2026

The indictment further claims that Hamas earned millions of dollars from cigarette smuggling throughout the war, and that Zini’s shipments could have aided the enemy. —Julia Frankel, Los Angeles Times, 5 Feb. 2026

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"