adjective
Definition: Relating to knowledge gained from reading or studying written works, rather than from personal experience.
Example: She has a book understanding of the subject, but lacks practical skills.
intransitive verb
Definition: To arrange for someone to have a seat, room, etc., at a future time.
Example: I need to book a table for dinner tonight.
noun
Definition: A collection of written or printed pages that are bound together, usually containing stories, information, or other content.
Example: I borrowed a fascinating book from the library about ancient civilizations.
transitive verb
Definition: To reserve or arrange something in advance, such as tickets or accommodations.
Example: I need to book a hotel for our vacation next month.