Code (band) definition

(1) A coding system used for transmitting messages requiring brevity or secrecy

(2) (computer science) the symbolic arrangement of data or instructions in a computer program or the set of such instructions

(3) A set of rules or principles or laws (especially written ones)

(4) Convert ordinary language into code

"We should encode the message for security reasons"

(5) Attach a code to

"Code the pieces with numbers so that you can identify them later"