(idiomatic) Finished; concluded; able to be regarded as a matter of record.

Contained in an official list (of members, employees, clients, projects etc.). / (business, accounting) Officially recorded in the financial records of a company or organization.

simple past tense and past participle of book it

present participle of book it

Third-person singular simple present indicative form of book it

plural of by-book

The qualities that make a book what it is.

(theater) Acting as prompter.

plural of Book

(obsolete) An ABC book; a primer.