WordNet (r) 3.0 (2006):

nursing home
    n 1: an institution where people are cared for; "a home for the
         elderly" [syn: home, nursing home, rest home]

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "nursing home":
   VA hospital, almshouse, asylum, base hospital, clinic,
   community hospital, convalescent home, convalescent hospital,
   evacuation hospital, field hospital, foster home, general hospital,
   halfway house, home, hospice, hospital, hospitium, infirmary,
   inpatient clinic, maison de sante, mental hospital, orphanage,
   osteopathic hospital, outpatient clinic, policlinic, polyclinic,
   poor farm, poorhouse, private hospital, proprietary hospital,
   public hospital, rest home, retreat, sanatorium, sick bay, sickbed,
   sickroom, special hospital, station hospital, surgical hospital,
   teaching hospital, veterans hospital, voluntary hospital, ward,
   well-baby clinic, workhouse