Definition of the word book in

The expression "book in" has its roots in the context of accommodations, particularly in the hospitality industry. It's a phrasal verb that combines the words "book" (meaning to reserve) and "in" (meaning to enter or put something in a place). In the past, travelers might have to physically check-in at a hotel's front desk, where a clerk would mark their name on a ledger and provide them with a room key. Today, some establishments offer the convenience of online reservations, but the phrase "book in" still conveys the idea of finishing the process of securing accommodation. More specifically, "book in" typically implies that a specific room has been reserved for the guest and is now officially allocated to them. The guest might receive a confirmation email or text message with their room number, as well as any relevant information about the hotel, checkout time, and nearby attractions. By "booking in," they can be confident that they have a place to stay for the duration of their trip, and can also avoid the stress and uncertainty of last-minute bookings.