noun
socialite
SOH-shuh-lyte/ˈsəʊʃəlaɪt/
A socially prominent person active in fashionable society.
The socialite attends the museum's annual gala.

Etymology
The companion base developed through social into a special sense concerning fashionable society. Socialite names someone prominent in that world, perhaps coined as a play on “social light” and in imitation of words ending in -ite.
In context
I'm definitely not a socialite
More examples
- Several well-known socialites appear in the party photographs.
- She became a socialite after moving into the city's fashionable circles.
- The magazine follows the socialite's busy calendar of events.
Forms
socialite · socialites