of, relating to, or denoting the branch of the Indo-European languagea system of symbols that allow people to communicate with each other, also the MOST symbolic way that culture is passed down familya family is group of people consisting of parents and children living together in a household; family members can also live away from parents or in a different household that includes Russian, Ukrainian, and Belorussian ( East Slavic ), Polish, Czech, Slovak, and Sorbian ( West Slavic ), and Bulgarian, Serbian, Croatian, Macedonian, and Slovene ( South Slavic ).