The Collaborative International Dictionary of English v.0.48:

Haunt \Haunt\ (h[aum]nt; 277), v. t. [imp. & p. p. Haunted; p.
   pr. & vb. n. Haunting.] [F. hanter; of uncertain origin,
   perh. from an assumed LL. ambitare to go about, fr. L. ambire
   (see Ambition); or cf. Icel. heimta to demand, regain, akin
   to heim home (see Home). [root]36.]
   1. To frequent; to resort to frequently; to visit
      pertinaciously or intrusively; to intrude upon.
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            You wrong me, sir, thus still to haunt my house.
                                                  --Shak.
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            Those cares that haunt the court and town. --Swift.
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   2. To inhabit or frequent as a specter; to visit as a ghost
      or apparition; -- said of spirits or ghosts, especially of
      dead people; as, the murdered man haunts the house where
      he died.
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            Foul spirits haunt my resting place.  --Fairfax.
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   3. To practice; to devote one's self to. [Obs.]
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            That other merchandise that men haunt with fraud . .
            . is cursed.                          --Chaucer.
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            Leave honest pleasure, and haunt no good pastime.
                                                  --Ascham.
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   4. To accustom; to habituate. [Obs.]
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            Haunt thyself to pity.                --Wyclif.
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The Collaborative International Dictionary of English v.0.48:

Haunt \Haunt\, v. i.
   To persist in staying or visiting.
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         I've charged thee not to haunt about my doors. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Haunt \Haunt\, n.
   1. A place to which one frequently resorts; as, drinking
      saloons are the haunts of tipplers; a den is the haunt of
      wild beasts.
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   Note: In Old English the place occupied by any one as a
         dwelling or in his business was called a haunt.
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   Note: Often used figuratively.
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               The household nook,
               The haunt of all affections pure.  --Keble.
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               The feeble soul, a haunt of fears. --Tennyson.
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   2. The habit of resorting to a place. [Obs.]
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            The haunt you have got about the courts.
                                                  --Arbuthnot.
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   3. Practice; skill. [Obs.]
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            Of clothmaking she hadde such an haunt. --Chaucer.
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WordNet (r) 3.0 (2006):

haunt
    n 1: a frequently visited place [syn: haunt, hangout,
         resort, repair, stamping ground]
    v 1: follow stealthily or recur constantly and spontaneously to;
         "her ex-boyfriend stalked her"; "the ghost of her mother
         haunted her" [syn: haunt, stalk]
    2: haunt like a ghost; pursue; "Fear of illness haunts her"
       [syn: haunt, obsess, ghost]
    3: be a regular or frequent visitor to a certain place; "She
       haunts the ballet" [syn: frequent, haunt]

Moby Thesaurus II by Grady Ward, 1.0:

106 Moby Thesaurus words for "haunt":
   Masan, affect, apparition, appearance, astral, astral spirit,
   banshee, baths, beset, burden, casino, club, clubhouse, control,
   crush one, departed spirit, disembodied spirit, dog, duppy, dybbuk,
   eidolon, exhaust, form, frequent, fret, gambling house,
   gathering place, ghost, grateful dead, guide, habituate,
   hang about, hang around, hang out, hang out at, hangout, hant,
   harass, harry, haunt the memory, health resort, home, hound,
   idolum, immateriality, incorporeal, incorporeal being,
   incorporeity, larva, lemures, locality, manes, materialization,
   meeting place, obsess, oni, oppress, persecute, phantasm,
   phantasma, phantom, plague, poltergeist, possess, presence,
   prey on, purlieu, rallying point, range, rendezvous, resort,
   resort to, revenant, shade, shadow, shape, shrouded spirit, site,
   spa, specter, spectral ghost, spirit, spook, springs, sprite,
   stamping, stamping ground, theophany, tire, torment, trouble,
   unsubstantiality, vex, vision, visit, walking dead man,
   wandering soul, watering place, wear out, wear upon one, weary,
   weigh upon, weight down, worry, wraith, zombie