What Are Post Codes Actually Telling You?

A system of words, letters, figures, or other symbols used to represent others, especially for the purposes of secrecy or computer programming. It also refers to a set of rules or principles that a group of people agree to follow.

Sets of rules, principles, or laws that govern behavior or how things are done. Also refers to systems of symbols or signals used for communication, secrecy, or computer programming.

Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.