The Collaborative International Dictionary of English v.0.48:

Domicile \Dom"i*cile\, n. [L. domicilium; domus house + (prob.)
   root of celare to conceal: cf. F. domicile. See Dome, and
   Conceal.]
   1. An abode or mansion; a place of permanent residence,
      either of an individual or a family.
      [1913 Webster]

   2. (Law) A residence at a particular place accompanied with
      an intention to remain there for an unlimited time; a
      residence accepted as a final abode. --Wharton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Domicile \Dom"i*cile\, v. t. [imp. & p. p. Domiciled; p. pr. &
   vb. n. Domiciling.] [Cf. F. domicilier. Cf. Domiciliate.]
   To establish in a fixed residence, or a residence that
   constitutes habitancy; to domiciliate. --Kent.
   [1913 Webster]

WordNet (r) 3.0 (2006):

domicile
    n 1: (law) the residence where you have your permanent home or
         principal establishment and to where, whenever you are
         absent, you intend to return; every person is compelled to
         have one and only one domicile at a time; "what's his legal
         residence?" [syn: domicile, legal residence]
    2: housing that someone is living in; "he built a modest
       dwelling near the pond"; "they raise money to provide homes
       for the homeless" [syn: dwelling, home, domicile,
       abode, habitation, dwelling house]
    v 1: make one's home in a particular place or community; "may
         parents reside in Florida" [syn: reside, shack,
         domicile, domiciliate]

Moby Thesaurus II by Grady Ward, 1.0:

65 Moby Thesaurus words for "domicile":
   abide, abiding place, abode, accommodations, address, bed, berth,
   bestow, billet, board, bunk, cantonment, cohabit, commorancy,
   crash pad, crib, diggings, digs, domiciliate, domus, doss down,
   dwell, dwelling, dwelling place, entertain, establish, habitation,
   hang out, harbor, home, house, housing, hut, inhabit, live,
   living quarters, locate, lodge, lodging, lodging place, lodgings,
   lodgment, nest, occupy, pad, perch, place, place to live, put up,
   quarter, remain, reside, residence, residency, roof, room, roost,
   seat, settle, shelter, situate, squat, stable, stay, tenant