Christian liturgy refers to the order, structure, and procedures used in the public worship of the Christian Church. Synonyms for Christian liturgy include Mass, Eucharist, Divine Office, or Common Prayer. These terms refer to different aspects of the Christian liturgical tradition and are used interchangeably depending on the specific Christian denomination or context. The Mass is a liturgical celebration that commemorates the Last Supper, while the Eucharist is the sacrament of the body and blood of Christ. The Divine Office is a set of daily prayers recited by clergy and religious, and Common Prayer refers to a set of liturgical books used in Anglican worship.