John Travolta's First Hit   John Travolta first gained fame as Vinnie Barbarino on the television series Welcome Back, Kotter (1975).
popular adjective (LIKED) A2 liked, enjoyed, or supported by many people: She's the most popular teacher in school. That song was popular with people from my father's generation. Walking is a popular form of exercise in Britain.
Definition of folk. 1  1 : originating or traditional with the common people of a country or region and typically reflecting their lifestyle folk hero folk music. 2  2 : of or relating to the common people or to the study of the common people folk sociology.