The Collaborative International Dictionary of English v.0.48:

Caf'e \Ca`f['e]"\ (k[a^]*f[=a]" or F. k[.a]`f[asl]"), n. [F. See
   Coffee.]
   A coffeehouse; a restaurant, especially a small restaurant
   where drinks and snacks are sold; also, a room in a hotel or
   restaurant where coffee and liquors are served.

   Syn: coffeehouse, coffee shop, coffee bar.
        [1913 Webster + WordNet 1.5]

Moby Thesaurus II by Grady Ward, 1.0:

74 Moby Thesaurus words for "cafe":
   alehouse, automat, bar, barrel house, barroom, beanery,
   beer garden, beer parlor, bistro, blind tiger, buffet, buvette,
   cabaret, cafeteria, canteen, cantina, chophouse, chuck wagon,
   cocktail lounge, coffee shop, coffeehouse, coffeeroom, cookhouse,
   cookshack, cookshop, diner, dining hall, dining room, dive,
   dog wagon, dramshop, drinking saloon, drive-in,
   drive-in restaurant, eatery, eating house, fast-food chain,
   gin mill, grill, grillroom, groggery, grogshop, hamburger stand,
   hash house, hashery, honky-tonk, hot-dog stand, kitchen, local,
   lunch counter, lunch wagon, luncheonette, lunchroom, mess hall,
   nightclub, pizzeria, pothouse, pub, public, public house,
   quick-lunch counter, rathskeller, restaurant, rumshop, saloon,
   saloon bar, smorgasbord, snack bar, speakeasy, taproom, tavern,
   tearoom, trattoria, wine shop