The Collaborative International Dictionary of English v.0.48:

Cupboard \Cup"board\, v. t.
   To collect, as into a cupboard; to hoard. [R.] --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cupboard \Cup"board\ (k[u^]b"b[~e]rd), n. [Cup + board.]
   1. A board or shelf for cups and dishes. [Obs.] --Bacon.
      [1913 Webster]

   2. A small closet in a room, with shelves to receive cups,
      dishes, food, etc.; hence, any small closet.
      [1913 Webster]

   Cupboard love, interested love, or that which has an eye to
      the cupboard. "A cupboard love is seldom true." --Poor
      Robin. [Colloq.]

   To cry cupboard, to call for food; to express hunger.
      [Colloq.] "My stomach cries cupboard." --W. Irving.
      [1913 Webster]

WordNet (r) 3.0 (2006):

cupboard
    n 1: a small room (or recess) or cabinet used for storage space
         [syn: cupboard, closet]

Moby Thesaurus II by Grady Ward, 1.0:

85 Moby Thesaurus words for "cupboard":
   Canterbury, archives, armoire, armory, arsenal, attic, bank,
   basement, bay, bin, bonded warehouse, bookcase, box, buffet,
   bunker, bureau, buttery, cabinet, cargo dock, cellar, cellaret,
   chest, chest of drawers, chiffonier, closet, clothespress, commode,
   conservatory, crate, credenza, crib, davenport, depository, depot,
   desk, dock, drawer, dresser, dump, escritoire, exchequer,
   glory hole, godown, hold, hutch, kitchen cabinet, library, locker,
   lowboy, lumber room, lumberyard, magasin, magazine, press, rack,
   repertory, repository, reservoir, rick, secretaire, secretary,
   shelf, sideboard, stack, stack room, stock room, storage, store,
   storehouse, storeroom, supply base, supply depot, tallboy, tank,
   treasure house, treasure room, treasury, vargueno, vat, vault,
   vitrine, wardrobe, warehouse, whatnot, wine cellar