coding

(noun) act of writing in code or cipher. Synonyms: cryptography, secret writing, steganography.

(verb) attach a code to. Synonyms: code. Example: "Code the pieces with numbers so that you can identify them later."

(verb) convert ordinary language into code. Synonyms: code, encipher, cipher, cypher, encrypt, inscribe, write in code. Example: "We should encode the message for security reasons."