a sign, token, or pledge of a covenant [n -S] / to bind by an oath or sacrament [v -ED, -ING, -S]
A religious ceremony or act of the Christian Church that is regarded as an outward and visible sign of inward and spiritual divine grace, in particular
(in the Roman Catholic and many Orthodox Churches) The rites of baptism, confirmation, the Eucharist, penance, anointing of the sick, ordination, and matrimony
(among Protestants) Baptism and the Eucharist
(in Roman Catholic use) The consecrated elements of the Eucharist, esp. the Host
A thing of mysterious and sacred significance; a religious symbol