noun
plural codes
[count] a set of laws or regulations
a set of ideas or rules about how to behave
a set of letters, numbers, symbols, etc., that is used to secretly send messages to someone [count]
[count] :a set of letters, numbers, symbols, etc., that identifies or gives information about something or someone
[noncount] :a set of instructions for a computer
verb
codes; coded; coding
[+ obj] to put (a message) into the form of a code so that it can be kept secret
to mark (something) with a code so that it can be identified
to change (information) into a set of letters, numbers, or symbols that can be read by a computer