Set of rules, principles or laws (4)
I believe the answer is:
code
(Other definitions for code that I've seen before include "See 21 Across" , "Program instructions" , "System of ethics - cipher" , "Ethical standards" , "conventions" .)
I believe the answer is:
code
(Other definitions for code that I've seen before include "See 21 Across" , "Program instructions" , "System of ethics - cipher" , "Ethical standards" , "conventions" .)