/fjuːd/ – noun
Definition: 1. đất phong, lãnh địa của chúa phong kiến;
2. mối thù không đội trời chung, việc trả nợ máu.
A more throughout explanation: A feud is a prolonged and bitter quarrel or dispute between two parties, typically involving ongoing hostility and animosity.
Example: The two families have been engaged in a bitter feud over the property boundary for years.