1
- a prolonged and bitter quarrel or dispute长期争吵（或争论）：
his complex arguments and bitter feuds with the Holy See.
他与教廷的复杂争论以及长期的尖锐对立。
1.1
- a state of prolonged mutual hostility, typically between two families or communities, characterized by murderous assaults in revenge for a previous injuries（家族或团体的）长期不和（或敌对状态）; 世仇：
a savage feud over drugs money.
因争夺贩卖毒品引起的长期残酷争斗。
no obj.
- take part in such a quarrel or violent conflict长期争吵（或争斗）; 世代结仇：
Hoover feuded with the CIA for decades.
胡佛与中情局进行了长达数十年的争斗。
词源
Middle English fede 'hostility, ill will', from Old French feide, from Middle Dutch, Middle Low German vēde, of Germanic origin; related to FOE.