Oxford Dictionary English book in phrasal verbphrasal verb Add to my wordlistjump to other resultsPhrasal Verbsbook in/into something Add to my wordlistjump to other results(British English) to arrive at a hotel, etc. and arrange to stay there I got in at ten and booked straight into a hotel.book somebody in/into something Add to my wordlistjump to other resultsto arrange for somebody to have a room at a hotel, etc. I’ve booked you in at the Sheraton for the night. oxfordlearnersdictionaries.com