Originally codebooks were often literally books, but today codebook is a byword for the complete record of a series of codes, regardless of physical format.

Is YEET in the Webster dictionary?

For instance, the word “yeet” has gained popularity and use over the last couple of years. Brewster uses this as an example of a word that exists and is used but its meaning is unclear, which is why it has not qualified for entry in the dictionary. Overall, “yeet” is positive but can mean excitement or approval.

What does codenamed mean?

a name assigned to conceal the real identity of a person, as a spy, or to conceal the existence or purpose of a plan, military operation, etc. Also called code phrase . a word or phrase assigned a meaning understood only by those who are secretly informed of it.