confirmation

noun

1. additional proof that something that was believed (some fact or hypothesis or theory) is correct

   noun.cognition

   Examples

   Fossils provided further confirmation of the evolutionary theory.

   Synonyms check substantiation verification

   Source: WordNet 3.0

2. information that confirms or verifies

   noun.communication

   Source: WordNet 3.0

3. making something valid by formally ratifying or confirming it

   noun.communication

   Examples

   Confirmation of the appointment.

   Synonyms ratification

   Source: WordNet 3.0

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.act

   Source: WordNet 3.0

5. a sacrament admitting a baptized person to full participation in the church

   noun.act

   Source: WordNet 3.0

6. The act of confirming or strengthening; the act of establishing, ratifying, or sanctioning; as, the <i>confirmation</i> of an appointment.

   noun

   Source: webster1913