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1. Act of writing in code or cipher
   - cryptography, secret writing, steganography

1. Attach a code to
   "Code the pieces with numbers so that you can identify them later"
    
2. Convert ordinary language into code
   - encipher, cipher, cypher, encrypt, inscribe, write in code

Derived forms: codings

See also: coder

Type of: committal to writing, encode, label, mark, tag, writing

Encyclopedia: Code