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.
She shows me the handwritten blue book full of her early notes.
From BBC ● May 22, 2026
He needed shoes, Vazquez said quietly, reading off of her small blue book, where all of the families’ information is noted.
From Los Angeles Times ● Dec. 25, 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
Ronan Takizawa, a sophomore at Colorado College, has never heard of a blue book.
From Seattle Times ● Aug. 9, 2023
She handed me a blue book with gilt-edged pages.
From "Three Little Words: A Memoir" by Ashley Rhodes-Courter
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
