| noun | additional proof that something that was believed (some fact or hypothesis or theory) is correct “fossils provided further confirmation of the evolutionary theory” |
| noun | information that confirms or verifies |
| noun | making something valid by formally ratifying or confirming it “the ratification of the treaty” |
| noun | 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 | a sacrament admitting a baptized person to full participation in the church |
| confirm | verb | strengthen or make more firm |
| verify | verb | confirm the truth of |
| check | verb | make an examination or investigation |
| substantiate | verb | establish or strengthen as with new evidence or facts |
| ratify | verb | approve and express assent, responsibility, or obligation |