1. graded adjective & adjective [v-link ADJ] If a hotel, restaurant, theatre, or transport service is booked up, it has no rooms, tables, or tickets left for a time or date. [mainly British] ⇒ St Just seemed pretty booked up, but we managed to find a room at the George. 2. graded adjective & adjective [v-link ADJ]
If someone is booked up, they have made so many arrangements that they have no more time to do things. [mainly British] ⇒ Mr Wilson's diary is booked up for months ahead. ⇒ I'm fully booked up, I couldn't possibly do it now.
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