The term 'KIND OF CODE' can refer to a variety of different codes, including DRESS (5 letters), PENAL (5 letters), MORSE (5 letters), POSTAL (6 letters), AREA (4 letters), ZIP (3 letters), BINARY (6 letters), GENETIC (7 letters), and SECRET (6 letters). DRESS code is a set of rules for appropriate clothing in certain situations. PENAL code is a set of laws that define crimes and punishments. MORSE code is a system of communication using dots and dashes. POSTAL code is a system of postal addresses used to identify locations. AREA code is a three-digit number used to identify telephone numbers in certain countries. ZIP code is a system of postal codes used in the United States. BINARY code is a system of communication using only two symbols. GENETIC code is a set of instructions for building proteins in living organisms. SECRET code is a system of communication using symbols or words that are known only to the sender and receiver.