Phratries are social groups or clans in ancient Greek society that were based on kinship and common ancestry. Some synonyms for phratries include brotherhoods, fraternities, and clans. These terms all describe groups that are bound together by shared values, traditions, and beliefs. Other synonyms for phratries might include associations, clubs, societies, or networks. These terms emphasize the group's structure and organization rather than its cultural or ancestral ties. Regardless of the synonym used, all of these terms describe groups that are united by a common purpose and a sense of community.