so ‧ cial ‧ ite /ˈsəʊʃ ə l-aɪt $ ˈsoʊ-/ BrE AmE noun [countable]
[ Word Family: noun : ↑ society , ↑ sociologist , ↑ sociology , ↑ sociability , ↑ social , ↑ socialism , ↑ socialist , ↑ socialite , ↑ socialization , ↑ sociopath ; adjective : ↑ sociable ≠ ↑ unsociable , ↑ social ≠ ANTI-SOCIAL , ↑ unsocial , ↑ socialist , ↑ socialistic , ↑ societal , ↑ sociological , ↑ sociopathic ; adverb : ↑ socially , ↑ sociably , ↑ sociologically ; verb : ↑ socialize ]
someone who is well known for going to many fashionable parties, and who is often rich:
a Washington socialite