Use 'confirmation' when asking someone to clarify or verify information, especially in professional settings. Could I get a confirmation on the deadline for this project?
Pro Tip 2/3
After Booking
'Confirmation' is often used after booking or reserving something to prove the transaction happened. They sent a hotel confirmation right after I made the reservation.
Pro Tip 3/3
Official Requirements
Institutions may request 'confirmation' to proceed with official processes like applications or registrations. The university requires a confirmation of your attendance before enrollment.