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 pop. 1  1 : a sharp explosive sound. 2  2 : a shot from a gun. 3  3 : soda pop.  4 : pop 1  fly. 5 : power to hit a baseball hard a hitter with some pop in his 2  bat. 6 : a drink or shot of alcohol.