also: えんしゅう
noun
Deep-seated grudge or bitter hostility, often long-lasting. Typically read おんしゅう.
彼は長年の怨讐を忘れられなかった。
He could not forget the resentment of many years.
noun
hated enemy; resented foe
Only with reading えんしゅう
A person who is the object of deep hatred or a grudge. Restricted to the reading えんしゅう.
彼は怨讐を討つために旅に出た。
He set out on a journey to take revenge on his hated enemy.
Variant kanji form using 讎; less common than 怨讐.
Compound of 怨 (grudge, resentment) and 讐 (enemy, foe). The reading おんしゅう is the standard on'yomi; えんしゅう is an alternative on'yomi for the kanji 怨.