English Dictionary
Define dictionary terms easily — search for "example", "dictionary", "language", or "word" in our powerful online English dictionary.
Define dictionary terms easily in our powerful online English dictionary.
Searching for...
No matching words found
Try a different search term or browse the dictionary
to arrange for yourself or someone else to stay at a hotel, hospital etc
He's booked himself in at a health spa.
to announce that you have arrived at a hotel or event so that your name can be put on an official record. You can also say check in, which is the usual American word
I'd just arrived at the conference and hadn't had time to book in.
