The term 'SLAV' is a reference to the Slavic peoples, an ethno-linguistic group of people who speak the Slavic languages and inhabit Eastern Europe. The two crossword solutions for this term are SERB or BULGARIAN, both of which refer to two distinct ethnic groups within the Slavic peoples. Serbs are an ethnic group native to Serbia and parts of Bosnia and Herzegovina, Croatia, Montenegro, and North Macedonia, while Bulgarians are an ethnic group native to Bulgaria.