1. Additional proof that something that was believed (some fact or hypothesis or theory) is correct Noun
2. Information that confirms or verifies Noun
3. Making something valid by formally ratifying or confirming it Noun
4. 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 Noun
5. A sacrament admitting a baptized person to full participation in the church Noun