Consecration
Consecration is the solemn dedication to a special purpose or service, usually religious. The word consecration literally means "association with the sacred". Persons, places, or things can be consecrated, and the term is used in various ways by different groups. A synonym for to consecrate is to sanctify; a distinct antonym is to desecrate.
Christianity
Roman Catholic Church
"Consecration" is used in the Catholic Church as the setting apart for the service of God of both persons and objects.
Ordination of bishops
The ordination of a new bishop is also called a consecration. While the term "episcopal ordination" is now more common, "consecration" was the preferred term from the Middle Ages through the period including the Second Vatican Council (11 October 1962 – 8 December 1965).
The Vatican II document Constitution on the Sacred Liturgy n. 76 states,
The English text of Catechism of the Catholic Church, Second Edition, 1997, under the heading "Episcopal ordination—fullness of the sacrament of Holy Orders", uses "episcopal consecration" as a synonymous term, using "episcopal ordination" and "episcopal consecration" interchangeably. (CCC nn. 1556–1558)