canteen

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A snack bar or small cafeteria, as on a military installation.
• noun A recreational facility, bar, or small general store formerly established for the patronage of soldiers.
• noun A recreation hall or social club where refreshments are available.
• noun A temporary or mobile eating place, especially one set up in an emergency.
• noun A usually metal container for carrying drinking water, as on a hike.
• noun A box with compartments for carrying cooking gear and eating utensils.
• noun A soldier's mess kit.
• noun Chiefly British A box used to store silverware.

from The Century Dictionary.

• noun A sort of sutler's shop in barracks, camps, garrisons, etc., where provisions, liquors, etc., are sold.
• noun A vessel used by soldiers for carrying water or liquor for drink.
• noun A square box, fitted up with compartments, in which British officers on foreign service pack a variety of articles, as spirit-bottles, tea and sugar, plates, knives, forks, etc.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Mil.) A small vessel used by soldiers or hikers for carrying water, liquor, or other drink.
• noun A chest containing culinary and other vessels for military officers in a garrison.
• noun The sutler's shop in a garrison.
• noun A store or small shop within a larger establishment where refreshments and sometimes other supplies are sold. At a military base the canteen may be as large as a general store; within a school or small company it may be only a small counter with very limited supplies, or a snack bar.
• noun A temporary location where food is dispensed during an emergency.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a small cafeteria or snack bar, especially one in a military establishment, school, or place of work
• noun a temporary or mobile café used in an emergency or on a film location etc
• noun a box with compartments for storing eating utensils, silverware etc
• noun a military mess kit
• noun a water bottle used by a soldier or camper

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a flask for carrying water; used by soldiers or travelers
• noun sells food and personal items to personnel at an institution or school or camp etc.
• noun a restaurant outside; often for soldiers or policemen
• noun a recreation room in an institution
• noun restaurant in a factory; where workers can eat