blue book
Americannoun
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a register or directory of socially prominent persons.
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any register or directory, as of major companies or officials.
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a blank book used in taking college examinations, usually with a blue cover.
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a British parliamentary or other publication bound in a blue cover.
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(initial capital letters) a reference manual listing the current market value of used cars by model and year of manufacture.
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a similar manual listing the market value of other items, appliances, etc.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These days, however, it's a blue book that's in the spotlight.
From BBC • Nov. 24, 2025
The little blue book now ranks a miserable 12th, on par with the likes of Malaysia, according to a new report by Henley & Partners, a company that advises people on moving abroad.
From MarketWatch • Oct. 19, 2025
He was clean-shaven and carried a bible and a blue book of dedications which had "Jesus First" emblazoned on its cover.
From Reuters • May 26, 2023
Currently I have that as my blue book with a blue cover and it’s also a Peak Pick.
From Seattle Times • Sep. 1, 2022
She handed me a blue book with gilt-edged pages.
From "Three Little Words: A Memoir" by Ashley Rhodes-Courter
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
