✨📕 The NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Learn More!
✨📕 The NEW Collegiate Dictionary — Learn More!

“book on”

We have one entry that includes the term book on.

wrote the book on

idiom

—used to say that someone is an expert on a particular subject

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  • a pencil broken in half on top of a test answer sheet
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Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
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cow coming home
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