What is the equivalent of a “mess” for enlisted personnel on a ship?

The term "mess" refers to a dining facility or place where personnel eat and socialize. For enlisted personnel aboard a ship, the appropriate area designated for this purpose is called the "Crew Mess." This space is specifically organized to serve the everyday dining needs of all enlisted sailors, providing them with meals and a communal area to eat and interact.

In contrast, the other terms refer to different facilities or groups within naval structure. The "Ward Room" is primarily meant for officers and is considered a more formal dining area. The "Goat Locker" is a colloquial term used for the area associated with chief petty officers, where they can gather. The "Chief's Mess" refers to the area for chief petty officers, separate from the general enlisted space. Thus, the "Crew Mess" is the correct match for the mess equivalent for enlisted personnel on a ship.