In Christianity, a rite is used to refer to a sacred ceremony (such as anointing of the sick), which may or may not carry the status of a sacrament depending on the Christian denomination (in Roman Catholicism, anointing of the sick is a sacrament while in Lutheranism it is not). The word "rite" is also used to denote a liturgical tradition usually emanating from a specific center; examples include the Roman Rite, the Byzantine Rite, and the Sarum Rite. Such rites may include various sub-rites. For example, the Byzantine Rite (which is used by the Eastern Orthodox, Eastern Lutheran, and Eastern Catholic churches) has Greek, Russian, and other ethnically-based variants.