Word.ws English Dictionary

in one's book

in one's book prepositional phrase: in one's opinion.

Prepositional phrase

  1. (informal) In one's opinion.
    • Near-synonyms: in one's view, in one's eyes, to one's mind; see also Thesaurus:in my opinion
    • Clara did nothing wrong in my book.
  2. Used other than figuratively or idiomatically: see in, one's, book.
    • Today's homework is in your book. Could I borrow it?

Synonyms of in one's book

Origin of in one's book

Refers to a notional book or list of one's opinions and beliefs. Slang from the mid-1900s.

Questions about in one's book

What does in one's book mean?
In one's book means in one's opinion.
What part of speech is in one's book?
In one's book is a prepositional phrase.

Words near in one's book in the dictionary

  1. in one's altitudes
  2. in one's back pocket
  3. in one's backyard
  4. in one's bare skin
  5. in one's bones
  6. in one's book
  7. in one's born days
  8. in one's corner
  9. in one's cups
  10. in one's dreams
  11. in one's element

Source and license

Adapted from Wiktionary: in one's 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: En-au-in one's book.ogg.

Cite this entry: “in one's book.” Word.ws, https://word.ws/in_one%27s_book. Based on Wiktionary, CC BY-SA 4.0.