Standard Lemma guide

codebook

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A book, table, database, or other object that stores the mapping between plaintext words or phrases and their equivalents in a code.

Definition source: English Wiktionary via Wiktextract

Topics: computing, cryptography, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A lookup table.

Definition source: English Wiktionary via Wiktextract

Topics: computer, computing, engineering, mathematics, natural-sciences, physical-sciences, science, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A list of disorders or conditions and the codes that represent them.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree English code Proto-Indo-European *bheh2ǵosder.? Proto-Indo-European *bheh2g-der.? Proto-Germanic *bōks Proto-West Germanic *bōk Old English bōc Middle English bok English book English codebook From code + book.

Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: salakirjoitusavain — cryptography: mapping between plaintext and code
  • Finnish: koodikirja — cryptography: mapping between plaintext and code
  • Indonesian: buku sandi — cryptography: mapping between plaintext and code