WordNet (r) 3.0 (2006):

rest 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 "rest 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, nursing home,
   orphanage, osteopathic hospital, outpatient clinic, policlinic,
   polyclinic, poor farm, poorhouse, private hospital,
   proprietary hospital, public hospital, retreat, sanatorium,
   sick bay, sickbed, sickroom, special hospital, station hospital,
   surgical hospital, teaching hospital, veterans hospital,
   voluntary hospital, ward, well-baby clinic, workhouse