Commissary

From Freepedia

A commissary is someone delegated by a superior to execute a duty or an office.

In the United States armed forces, it has the additional meaning of being a store for equipment and provisions. Modern commissaries are quite similar to civilian supermarkets. They provide military members with most of the same groceries available in the U.S. economy regardless of where they are stationed world-wide. United States commissaries are under the ultimate control of the Defense Commissary Agency.

In the US film industry, the word commissary is often used to mean something which is refectory.