IPA: //priːˈbʊk//
KK: /priˈbʊk/
To reserve something, such as a ticket or a room, before the actual time it is needed.
I decided to prebook my flight to ensure I got a good price.
Past: prebooked
Past Participle: prebooked
Prebook → It is formed from "pre-" (meaning before) and "book" (from Old English "boc", meaning to reserve or arrange). The word "prebook" means to arrange or reserve something in advance.
Think of doing something 'before' ('pre-') you actually need it, like reserving a ticket ahead of time.