confirmationcode
nounUK /ˌkɒnfəˈmeɪʃən kəʊd/
US /ˌkɑːnfərˈmeɪʃən koʊd/
A confirmation code is a special set of letters or numbers that proves something is true or done.
The website sent me a confirmation code by email after I booked my ticket.
OTHER MEANINGS
2. A short code a website sends to your phone or email to check that you are really you.
Enter the confirmation code we just texted you to finish signing in.
3. A number on a ticket or booking that shows your order is official.
Show your confirmation code at the hotel desk when you arrive.
4. A code given after a purchase that you can use to pick up or track your order.
Keep your confirmation code safe so you can collect your parcel.