Other forms: commissaries
A commissary is a food and supply store for employees. On military bases, soldiers and their families shop in a commissary.
The original commissaries were the military ones, from an earlier meaning of the word, "military official in charge of food supplies and transport." Today, many workplaces have commissaries where employees can buy prepared food, provisions, and sometimes equipment. Some factory laborers, miners, incarcerated people, and office workers shop at commissaries. And since Hollywood movie studios first opened in the early 20th century, they operated cafeterias on their lots, known as commissaries, for their employees.