Wordnet 3.0
NOUN (1)
1. 
 a room equipped for preparing meals; 
The Collaborative International Dictionary of English v.0.48:
Kitchen \Kitch"en\ (k[i^]ch"[e^]n), n. [OE. kichen, kichene,
   kuchene, AS. cycene, L. coquina, equiv. to culina a kitchen,
   fr. coquinus pertaining to cooking, fr. coquere to cook. See
   Cook to prepare food, and cf. Cuisine.]
   1. A room equipped for cooking food; the room of a house,
      restaurant, or other building appropriated to cookery.
      [1913 Webster]
            Cool was his kitchen, though his brains were hot.
                                                  --Dryden.
      [1913 Webster]
            A fat kitchen makes a lean will.      --Franklin.
      [1913 Webster]
   2. A utensil for roasting meat; as, a tin kitchen.
      [1913 Webster]
   3. The staff that works in a kitchen.
      [PJC]
   Kitchen garden. See under Garden.
   Kitchen lee, dirty soapsuds. [Obs.] "A brazen tub of
      kitchen lee." --Ford.
   Kitchen stuff, fat collected from pots and pans. --Donne.
      [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Kitchen \Kitch"en\, v. t.
   To furnish food to; to entertain with the fare of the
   kitchen. [Obs.] --Shak.
   [1913 Webster]
WordNet (r) 3.0 (2006):
kitchen
    n 1: a room equipped for preparing meals
Moby Thesaurus II by Grady Ward, 1.0:
61 Moby Thesaurus words for "kitchen":
   automat, bakehouse, bakery, beanery, bistro, buffet, buvette,
   caboose, cafe, cafeteria, camboose, canteen, cantina, chophouse,
   chuck wagon, coffee shop, coffeehouse, coffeeroom, cookery,
   cookhouse, cooking, cookroom, cookshack, cookshop, cuisine,
   culinary, diner, dining hall, dining room, dog wagon, drive-in,
   drive-in restaurant, eatery, eating house, fast-food chain, galley,
   grill, grillroom, hamburger stand, hash house, hashery,
   hot-dog stand, kitchenette, larder, lunch counter, lunch wagon,
   luncheonette, lunchroom, mess hall, pantry, pizzeria,
   quick-lunch counter, restaurant, scullery, smoking room,
   smorgasbord, snack bar, storeroom, tavern, tearoom, trattoria