1. Additional proof that something that was believed (some fact, hypothesis or theory) is correct
   "fossils provided further confirmation of the evolutionary theory";
   - verification, check, substantiation
    
2. Information that confirms or verifies
   "We received confirmation of our hotel reservation"
    
3. Making something valid by formally ratifying or confirming it
   "confirmation of the appointment";
   - ratification
    
4. A sacrament admitting a baptized person to full participation in the church
   "The bishop presided over the confirmation ceremony"; "Teenagers often undergo confirmation as a rite of passage in their faith"
    
5. 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
   "The confirmation ceremony marked an important milestone in their Jewish education"; "Families gathered to celebrate the confirmation of the young adults"

Sounds like: conformation

Derived forms: confirmations

Type of: agreement, cogent evidence, gen [Brit, informal], info [informal], information, proof, religious ceremony, religious ritual, sacrament

Encyclopedia: Confirmation