A feud is a long-standing argument or conflict between two parties, often characterized by bitter resentment and animosity. It can involve individuals, families, groups, or even entire communities who engage in ongoing disputes over issues such as territory, resources, or personal grievances. Feuds can be driven by a variety of factors including differences in social status, cultural values, or historical conflicts. They often result in retaliatory actions and escalate into violent confrontations that can last for generations.