1. statements or evidence that prove something is true or correct
2. formal acknowledgments that something has been received or arranged
3. religious ceremonies in which young people affirm their faith
Usage: religious

Examples

• The scientist received confirmations of her theory from multiple research teams.
• We need written confirmations of all hotel reservations before the trip.
• The lab results provided confirmations that the treatment was working.
• Please send confirmations for your attendance at the meeting.
• The church held confirmations for twelve teenagers this spring.
• Multiple confirmations of the news story came from different sources.
• The airline sent email confirmations for our flight bookings.