"To encode a message" means to convert information or a message into a different form or language that is not easily understandable to others. Full definition
In recent years, physicists and engineers have been developing methods that transmit uncrackable encode messages in individual particles of light, or photons. (sciencemag.org)
Dougray Scott stars as Tom Jericho, a leading British code - breaker responsible for the initial solving of the complicated system of encoded messages used by the Germans. (qwipster.net)
The personal scribbles, found objects, and enigmatic symbols are as revealing about his working methods, as they are subtle in encoding messages about politics, race and his life experiences.» (culturetype.com)