The Collaborative International Dictionary of English v.0.48:

Rapture \Rap"ture\ (r[a^]p"t[-u]r; 135), n. [L. rapere, raptum,
   to carry off by force. See Rapid.]
   1. A seizing by violence; a hurrying along; rapidity with
      violence. [Obs.]
      [1913 Webster]

            That 'gainst a rock, or flat, her keel did dash
            With headlong rapture.                --Chapman.
      [1913 Webster]

   2. The state or condition of being rapt, or carried away from
      one's self by agreeable excitement; violence of a pleasing
      passion; extreme joy or pleasure; ecstasy.
      [1913 Webster]

            Music, when thus applied, raises in the mind of the
            hearer great conceptions; it strengthens devotion,
            and advances praise into rapture.     --Addison.
      [1913 Webster]

            You grow correct that once with rapture writ.
                                                  --Pope.
      [1913 Webster]

   3. A spasm; a fit; a syncope; delirium. [Obs.] --Shak.
      [1913 Webster]

   Syn: Bliss; ecstasy; transport; delight; exultation.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rapture \Rap"ture\, v. t. [imp. & p. p. Raptured (-t[-u]rd;
   135); p. pr. & vb. n. Rapturing.]
   To transport with excitement; to enrapture. [Poetic]
   --Thomson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rapture
    n 1: a state of being carried away by overwhelming emotion;
         "listening to sweet music in a perfect rapture"- Charles
         Dickens [syn: ecstasy, rapture, transport,
         exaltation, raptus]
    2: a state of elated bliss [syn: ecstasy, rapture]

Moby Thesaurus II by Grady Ward, 1.0:

79 Moby Thesaurus words for "rapture":
   abandon, affection, affectionateness, amativeness, amorousness,
   beatification, beatitude, bewitchment, blessedness, bliss,
   blissfulness, cheer, cheerfulness, cloud nine, craze, delectation,
   delight, delirium, demonstrativeness, dharana, dhyana, ecstasis,
   ecstasy, ecstatics, elation, enchantment, euphoria, exaltation,
   exhilaration, exuberance, felicity, fire and fury, frenzy, furor,
   furore, fury, gaiety, gladness, glee, goatishness, happiness,
   heaven, high spirits, horniness, hypnosis, hysteria, intoxication,
   joy, joyance, joyfulness, joyousness, lovelornness, lovesickness,
   madness, orgasm, orgy, overhappiness, overjoyfulness, paradise,
   passion, pleasure, rage, ravishment, rhapsody, romanticism,
   samadhi, sentimentality, seventh, seventh heaven, sexiness,
   sunshine, susceptibility, tearing passion, thrill, towering rage,
   trance, transport, unalloyed happiness, yoga trance