The Collaborative International Dictionary of English v.0.48:

Housekeeper \House"keep`er\, n.
   1. One who occupies a house with his family; a householder;
      the master or mistress of a family. --Locke.
      [1913 Webster]

   2. One who does, or oversees, the work of keeping house; as,
      his wife is a good housekeeper; often, a woman hired to
      superintend the servants of a household and manage the
      ordinary domestic affairs.
      [1913 Webster]

   3. One who exercises hospitality, or has a plentiful and
      hospitable household. [Obs.] --Sir H. Wotton.
      [1913 Webster]

   4. One who keeps or stays much at home. [R.]
      [1913 Webster]

            You are manifest housekeeper.         --Shak.
      [1913 Webster]

   5. A house dog. [Obs.] --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

housekeeper
    n 1: a servant who is employed to perform domestic task in a
         household

Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "housekeeper":
   MC, attorney, bailiff, butler, chamberlain, croupier, curator,
   custodian, emcee, factor, guardian, house steward, landreeve,
   librarian, majordomo, master of ceremonies, proctor, procurator,
   seneschal, steward