confirmation

Noun

• a sacrament admitting a baptized person to full participation in the church

• a ceremony held in the synagogue (usually at Pentecost) to admit as adult members of the Jewish community young men and women who have successfully completed a course of study in Judaism

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

• information that confirms or verifies

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

Related words

• Synonyms: 
  ratification , verification , check , substantiation