Synonyms for Socialite:

n.

guest, host, invitee, man-about-town, company, party animal, partygoer, guest of honor, hostess. fop (noun)
swell, beauty, gallant, cavalier, dandy, fop, dude, clotheshorse, blade, peacock, blood, beau.

Other synonyms:

man-about-town, partygoer, guest of honor, party animal, invitee. hostess. company. guest. host. Other relevant words:
host, partygoer, company, guest, hostess, man-about-town, invitee.