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"enemy" is also used as a crossword clue. If that's what you saw, the answer is often foe (3 letters).
Definitions
any hostile group of people
Word origin
From Middle English enemy, enemye, enmy, borrowed from Old French enemi, anemi (Modern French ennemi), from Latin inimīcus, from in- (“not”) + amīcus (“friend”). Displaced Middle English fend (“enemy”), from Old English fēond (“enemy”), which survived into Modern English as fiend, but with a different meaning. Doublet of inimic.
Used in a sentence
“under enemy duress”
“He made a lot of enemies after reducing the working hours in his department.”
“You may not want any enemies, but sometimes, your enemies choose you.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Foe”5 letters
02“Opponent or foe”5 letters
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