code · noun /koʊd/
code (SECRET MESSAGE)
B2 C or U a system of words, letters or signs that is used to represent a message in secret form
Dictionary examples:
The message was written in code.
She managed to break/crack the code.
Learner example:
The purpose was to discover secret codes of the e[n]emy thanks to electronic intelligence. (First Certificate in English; B2; French)
code (RULES)
C1 C a set of rules on how to behave or how to do things
Dictionary examples:
a code of conduct
The club has a strict dress code.
Learner example:
Most of their manners, dress code, personal conduct and their general well-being is taught at school. (International English Language Testing System; C1; Afrikaans)