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1. An armed adversary (especially a member of an opposing military force)
   "a soldier must be prepared to kill his foes"
   - enemy, foeman [archaic], opposition
    
2. A personal enemy
   "they had been political foes for years"
   - enemy

Sounds like: faux

Derived forms: foes

Type of: adversary, antagonist, challenger, competition, competitor, contender, opponent, opposer, resister, rival

Antonym: friend

Part of: enemy

Encyclopedia: Foe