Ethnos is a Greek word that refers to a group of people who share a common culture, language, and tradition. However, there are several synonyms that can also be used to refer to this concept. One of these is the word "nation," which refers to a group of people united by a common history, territory, and culture. Another synonym is the term "tribe," which generally refers to a smaller group of people who share common ancestry and often practice a common religion. Other synonyms for ethnos include ethnic group, racial group, and cultural group. Despite the differences in terminology, these words all reflect the idea of a group of people with shared cultural traits and characteristics.