Word.ws English Dictionary

out of book

out of book prepositional phrase: no longer following commonly played theoretical lines analyzed in opening books; in territory unfamiliar to one or both of the players.

Prepositional phrase

  1. No longer following commonly played theoretical lines analyzed in opening books; in territory unfamiliar to one or both of the players.
    Antonyms:
    in book

Synonyms of out of book

Antonyms

Questions about out of book

What does out of book mean?
Out of book means no longer following commonly played theoretical lines analyzed in opening books; in territory unfamiliar to one or both of the players.
What part of speech is out of book?
Out of book is a prepositional phrase.

Words near out of book in the dictionary

  1. out of action
  2. Out of Africa
  3. out of all proportion
  4. out of battery
  5. out of bed
  6. out of book
  7. out of both sides of one's mouth
  8. out of bounds
  9. out of breath
  10. out of business
  11. out of central casting

Source and license

Adapted from Wiktionary: out of book (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-out of book.wav.

Cite this entry: “out of book.” Word.ws, https://word.ws/out_of_book. Based on Wiktionary, CC BY-SA 4.0.