The Collaborative International Dictionary of English v.0.48:

Scent \Scent\, v. t. [imp. & p. p. Scented; p. pr. & vb. n.
   Scenting.] [Originally sent, fr. F. sentir to feel, to
   smell. See Sense.]
   1. To perceive by the olfactory organs; to smell; as, to
      scent game, as a hound does.
      [1913 Webster]

            Methinks I scent the morning air.     --Shak.
      [1913 Webster]

   2. To imbue or fill with odor; to perfume.
      [1913 Webster]

            Balm from a silver box distilled around,
            Shall all bedew the roots, and scent the sacred
            ground.                               --Dryden.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Scent \Scent\, v. i.
   1. To have a smell. [Obs.]
      [1913 Webster]

            Thunderbolts . . . do scent strongly of brimstone.
                                                  --Holland.
      [1913 Webster]

   2. To hunt animals by means of the sense of smell.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Scent \Scent\, n.
   1. That which, issuing from a body, affects the olfactory
      organs of animals; odor; smell; as, the scent of an
      orange, or of a rose; the scent of musk.
      [1913 Webster]

            With lavish hand diffuses scents ambrosial. --Prior.
      [1913 Webster]

   2. Specifically, the odor left by an animal on the ground in
      passing over it; as, dogs find or lose the scent; hence,
      course of pursuit; track of discovery.
      [1913 Webster]

            He gained the observations of innumerable ages, and
            traveled upon the same scent into Ethiopia. --Sir W.
                                                  Temple.
      [1913 Webster]

   3. The power of smelling; the sense of smell; as, a hound of
      nice scent; to divert the scent. --I. Watts.
      [1913 Webster]

WordNet (r) 3.0 (2006):

scent
    n 1: a distinctive odor that is pleasant [syn: aroma,
         fragrance, perfume, scent]
    2: an odor left in passing by which a person or animal can be
       traced
    3: any property detected by the olfactory system [syn:
       olfactory property, smell, aroma, odor, odour,
       scent]
    v 1: cause to smell or be smelly [syn: odorize, odourise,
         scent] [ant: deodorise, deodorize, deodourise]
    2: catch the scent of; get wind of; "The dog nosed out the
       drugs" [syn: scent, nose, wind]
    3: apply perfume to; "She perfumes herself every day" [syn:
       perfume, scent]

Moby Thesaurus II by Grady Ward, 1.0:

141 Moby Thesaurus words for "scent":
   ambergris, ambrosia, aroma, aromatic, aromatic gum, aromatic water,
   aromatize, attar, attar of roses, balm, balm of Gilead, balminess,
   balsam, bay oil, be warm, bergamot oil, bouquet, breath, breathe,
   breathe in, broad hint, burn, catchword, cense, champaca oil,
   civet, clue, condensation trail, contrail, course, cue, cue word,
   definite odor, detect, detectable odor, determine, discern,
   distinguish, effluvium, emanation, embalm, essence, essential oil,
   evidence, exhalation, extract, find out, fixative, flavor,
   fragrance, fragrancy, fruitiness, fume, fumigate, gentle hint,
   gesture, get wind of, glimmer, glimmering, heliotrope, hint,
   hot lead, implication, incense, index, indication, inhale, inkling,
   innuendo, insinuation, intimation, jasmine oil, key, key word,
   kick, lavender oil, lead, learn about, line, look, musk, muskiness,
   myrcia oil, myrrh, nod, nose, nose out, nosegay, nudge, odor,
   odorize, olfaction, olfactory sense, parfum, path, perceive,
   perfume, perfumery, piste, prompt, recognize, redolence, rose oil,
   savor, sense, sense of smell, sign, signal, signs, smell, smell of,
   smell out, smelling, sniff, sniff out, snuff, snuffle, spice,
   spiciness, spoor, stench, subtle odor, suggestion, suspicion,
   sweet savor, sweet smell, symptom, telltale, thurify, tip-off,
   trace, traces, track, trail, vapor trail, vestige, volatile oil,
   wake, whiff, whisper, wink