The term 'A South Slavic Ethnic Group' refers to the Serbs, a nation of South Slavic people who inhabit Serbia and other parts of the Balkans. The term 'Serbs' is a 5-letter word, while 'SERB' is a 4-letter word. The Serbs are an ancient people with a rich cultural heritage, and they have a long history of living in the region. They are predominantly Orthodox Christian, and their language is Serbian.