early 14c., "inhabitant of a city," from Anglo-Fr. citezein (spelling altered by influence of denizen), from O.Fr. citeien "city-dweller, citizen" (12c., Mod.Fr. citoyen), from cite (see city) + -ain (see -ian). Replaced O.E. burhsittend and ceasterware. Sense of "inhabitant of a country" is late 14c.

1. A legally recognized subject or national of a state or commonwealth, either native or naturalized.
2. An inhabitant of a particular town or city.
3. a member of a state
4. a native or naturalized person who owes allegiance to a government and is entitled to protection from it

A "citizen" is frequently interpreted as being an equal member of a society. However, citizenship can also imply lesser rights than others within the same community. It is why the term member is used to describe all relationships within Ucadian societies.

References:

• Canons of Sovereign Law - Article 45 - Polis
• The Journey of UCA 20.16.6
• UCADIA members