Main Entry: foe

Pronunciation: \ˈfō\

Function: noun

Etymology: Middle English fo, from Old English fāh, from fāh, adjective, hostile; akin to Old High German gifēh hostile

Date: before 12th century

1 : one who has personal enmity for another
2 a : an enemy in war b : adversary, opponent
3 : one who opposes on principle <a foe of needless expenditures>
4 : something prejudicial or injurious