Celebrant/ˈselɪbrənt/ Definition 1 of 3Pro Tip 1/2Religious context Used to describe someone actively involved in a religious ceremony, typically a leader. The priest, as the celebrant, led the congregation in prayer. Pro Tip 2/2Celebratory tone Carries a connotation of joy and participation in a special event, often communal. The celebrants raised their glasses in a toast.