confirmation, Christian rite by which admission to the church, established previously in infant baptism, is said to be confirmed (or strengthened and established in faith). It is considered a sacrament in Roman Catholic and Anglican churches, and it is equivalent to the Eastern Orthodox sacrament of chrismation.

Confirmation is also a formal Jewish ceremony to show that a roung person has completed religious studies. [ U ] He’d heard rumors of the sale, but had no confirmation of it yet.