canteen

noun7

1. •
   A temporary or mobile café used in an emergency or on a film location etc.
2. •
   A small cafeteria or snack bar, especially one in a military establishment, school, or place of work.

   • He ordered a salad at the canteen.
3. •
   A cafeteria in a school or place of work.
4. •
   A water bottle, flask, or other vessel, typically used by a soldier or camper as a bottle for carrying water or liquor for drink.
5. •
   A box with compartments for storing eating utensils, silverware etc.
6. •
   Goods purchased from a prison canteen.

   • Yeah, I worked that bitch. She was buying me all the canteen I wanted. — 1984
7. •
   A military mess kit.