Definition of open book in English:

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open book


A person or thing that is easily understood or interpreted: my life’s an open book
More example sentences
  • From your social causes to cute pet photos, your life is a open book.
  • Harvey Pekar's life is an open book, and an illustrated one at that.
  • Tonight, her life has been an open book and a tabloid target, a rare interview with Melanie Griffith.

For editors and proofreaders

Syllabification: o·pen book

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