Entry 1 sense Webster, 1913 encode /(ĕn*kōd")/ · en·code · IPA /ɪnˈkoʊd/ 01 v. t. To convert (a text, data) into a series of secret symbols by means of a code{5}; to encrypt. 1. To convert (a text, data) into a series of secret symbols by means of a code{5}; to encrypt. See: code Syn. encrypt, code, encipher, cipher, cypher, inscribe, write in code.