ritual - the prescribed procedure for conducting religious ceremonies

Eucharist, Eucharistic liturgy, Holy Eucharist, Holy Sacrament, Liturgy, Lord's Supper, sacrament of the Eucharist - a Christian sacrament commemorating the Last Supper by consecrating bread and wine

intercommunion - participation in Holy Communion by members of more than one church (eg Catholic and Orthodox)

intercourse, social intercourse - communication between individuals

Christian religion, Christianity - a monotheistic system of beliefs and practices based on the Old Testament and the teachings of Jesus as embodied in the New Testament and emphasizing the role of Jesus as savior

denomination - a group of religious congregations having its own organization and a distinctive faith