Source : Webster's Revised Unabridged Dictionary (1913)

Harem \Ha"rem\, n.[Ar. haram, orig., anything forbidden of
   sacred, fr. harama to forbid, prohibit.] [Written also haram
   and hareem.]
   1. The apartments or portion of the house allotted to females
      in Mohammedan families.

   2. The family of wives and concubines belonging to one man,
      in Mohammedan countries; a seraglio.

Source : WordNet®

harem
     n : living quarters reserved for wives and concubines and female
         relatives in a Muslim household [syn: {hareem}, {seraglio},
          {serail}]