Synonyms for Lord's Supper (same or very similar meaning)
WordNet sense 1 (a Christian sacrament commemorating the Last Supper by consecrating bread and wine):
liturgy, Eucharist, Holy Eucharist, Eucharistic liturgy, Holy Sacrament, sacrament of the EucharistWordNet sense 2 (the traditional Passover supper of Jesus with his disciples on the eve of his crucifixion):
Last SupperFrom the ODE community, based on WordNetadd/edit