The Collaborative International Dictionary of English v.0.48:

Sojourner \So"journ*er\, n.
   One who sojourns.
   [1913 Webster]

         We are strangers before thee, and sojourners. --1.
                                                  Chron. xxix.
                                                  15.
   [1913 Webster]

WordNet (r) 3.0 (2006):

sojourner
    n 1: a temporary resident

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "sojourner":
   addressee, artist-in-residence, denizen, dweller, habitant,
   house detective, incumbent, inhabitant, inhabiter, inmate,
   inpatient, intern, live-in maid, locum tenens, occupant, occupier,
   passer, passerby, residencer, resident, resident physician,
   residentiary, resider, temporary lodger, tenant, transient,
   transient guest