codebooks
Spy translation guides
Codebooks are reference manuals containing systems for encoding or decoding information.
In cryptography, a codebook lists plaintext words or phrases alongside their coded equivalents: The spy consulted the codebook to decipher the message.
In statistics and research, a codebook documents how variables in a dataset are labeled, measured, and organized—essential for interpreting survey data or replicating studies.
Hidden writing system
- encryptionConverting data into code
- decryptionConverting ciphertext to plaintext
- keyLock-opening device
- ciphertextEncoded, unreadable message
plaintext · cryptanalysis · Enigma · substitution · transposition · secret writing · intelligence · espionage
Conveyed indications
- semaphoreFlag-based signaling system
- radioElectromagnetic wave receiver
- telegraphyElectrical long-distance messaging
- navalOf maritime warfare
maritime · aviation · flag signals · transmission · military · phonetic alphabet · call signs
Established codes of conduct
- specificationsStated requirements and parameters
- referenceDirecting attention elsewhere
- guidelinesSuggested rules for behavior
- standardsAccepted levels of quality
nomenclature · classification systems · regulatory · compliance · technical manuals · building codes · ICD · CPT
Relating to characteristics, not quantities
- themesMain ideas throughout
- categoriesGroups of related things
- systematicFollowing ordered procedures
- annotationAdded explanatory comment
labeling · patterns · data analysis · interpretive · methodology · categorization · social science
cipher
Hidden writing system
- encryptionConverting data into code
- decryptionConverting ciphertext to plaintext
- keyLock-opening device
ciphertext · plaintext · cryptanalysis · Enigma · substitution · transposition · secret writing · intelligence · espionage · wartime
signals
Conveyed indications
- semaphoreFlag-based signaling system
- radioElectromagnetic wave receiver
- telegraphyElectrical long-distance messaging
naval · maritime · aviation · flag signals · transmission · military · phonetic alphabet · call signs
protocols
Established codes of conduct
- specificationsStated requirements and parameters
- referenceDirecting attention elsewhere
- guidelinesSuggested rules for behavior
standards · nomenclature · classification systems · regulatory · compliance · technical manuals · building codes · ICD · CPT
qualitative
Relating to characteristics, not quantities
- themesMain ideas throughout
- categoriesGroups of related things
- systematicFollowing ordered procedures
annotation · labeling · patterns · data analysis · interpretive · methodology · categorization · social science
- Codebreakingcodebreakers, codebreaking, cryptanalysis, cipher, ciphers
- military communicationsradio, walkie-talkie, radio operators, signal flags, encrypted message
- war roomcommand post, headquarters, operations center, ops center, crisis center
- legal bookslaw dictionary, casebook, hornbook, treatise, nutshell
- publicationsnewspaper, magazines, magazine, journal articles, journals
- research sourcesbibliographies, databases, indexes, primary sources, secondary sources