a set of laws, rules
a secret system of words, letters, or symbols
a set of signals, symbols, etc.
put (sth) into code
"Code the pieces with numbers so that you can identify them later"
"We should encode the message for security reasons"
In all questions of morals they were allowed to follow their ancestral code.
出自： G. Orwell
Fascism is the ultimate code of the hoodlum.
出自： G. Steiner