Pronunciation: (fō),[key] —n. 1. a person who feels enmity, hatred, or malice toward another; enemy: a bitter foe. 2. a military enemy; hostile army.
3. a person belonging to a hostile army or nation.
4. an opponent in a game or contest; adversary: a political foe. 5. a person who is opposed in feeling, principle, etc., to something: a foe to progress in civil rights. 6. a thing that is harmful to or destructive of something: Sloth is the foe of health.