code book
Americannoun
Etymology
Origin of code book
First recorded in 1880–85
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.
We, then decided after scanning the code book, that we wanted to make sure that this was a prosecution of both sets of victims, the majority of which were Kenyan victims.
From MSNBC ● Jun. 19, 2019
At spy stations, young visitors can imitate her method, write messages in invisible ink and use a cipher wheel, an early encryption and decryption device, to reveal information in Tallmadge’s code book.
From New York Times ● Sep. 20, 2018
A well-thumbed code book is preserved for display.
From Los Angeles Times ● Sep. 24, 2016
Cynthia's first big assignment was enough to daunt the wiliest old pro: her orders were to get hold of the Italian naval code book.
From Time Magazine Archive
Frantically, Jonah angled the mirror, turning his tax code book almost sideways.
From "Found" by Margaret Peterson Haddix
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