What is "trets"

n. (plural of tret English)

Trets is a commune (town or township, in English) in the Bouches-du-Rhône department of the Provence-Alpes-Côtes d’Azur region in the southeast of France. With a population of over 10,000, it is one of forty-four communes in the Aix-en-Provence arrondissement or district. It is often described as a medieval town because of its development during the Middle Ages of European history and retention of medieval architecture.