Confirmation is a word that means getting confirmation or proof that something is true or valid. It can also mean agreeing or approving of something. Full definition
You will be notified by email of confirmation of your booking or if there are any changes that may need to be made to your booking. (alluxia.com)
I get approved for 20 + cards per year between me and spouse from different banks and have never been given a written confirmation email of the bonus. (doctorofcredit.com)
For this trading strategy, you should not wait for confirmation for most trading setups. (tradingsetupsreview.com)