celebrity UK /sɪˈlɛb.ɹɪ.ti/US /səˈlɛb.ɹɪ.ɾi/ noun3 •a person known by name and face to very many people because of their success •Fame, renown; the state of being famous or talked-about.Many of those that envy celebrities aspire to celebrity themselves. •(no longer used) A rite or ceremony. formscelebrities