Confirmation

The act of confirming or strengthening; the act of establishing, ratifying, or sanctioning; as, the confirmation of an appointment.

That which confirms; that which gives new strength or assurance; as to a statement or belief; additional evidence; proof; convincing testimony.

A rite supplemental to baptism, by which a person is admitted, through the laying on of the hands of a bishop, to the full privileges of the church, as in the Roman Catholic, the Episcopal Church, etc.

A conveyance by which a voidable estate is made sure and not voidable, or by which a particular estate is increased; a contract, express or implied, by which a person makes that firm and binding which was before voidable.

additional proof that something that was believed (some fact or hypothesis or theory) is correct; "fossils provided further confirmation of the evolutionary theory"

making something valid by formally ratifying or confirming it; "the ratification of the treaty"; "confirmation of the appointment"