feud
nounUK /fjuːd/
US /fjuːd/
A feud is a long fight between two people or groups who stay angry at each other.
The two families had a feud that lasted for many years.
OTHER MEANINGS
2. A bitter, continuing hostility between two parties.
The feud between the neighbors made the whole street tense.
3. To take part in a long-lasting quarrel.
The two brothers feuded over the family business for decades.
4. A medieval land dispute between noble families.
The old story tells of a bloody feud between two castles.