The Collaborative International Dictionary of English v.0.48:

Rave \Rave\ (r[=a]v), v. i. [imp. & p. p. Raved (r[=a]vd); p.
   pr. & vb. n. Raving.] [F. r[^e]ver to rave, to be
   delirious, to dream; perhaps fr. L. rabere to rave, rage, be
   mad or furious. Cf. Rage, Reverie.]
   1. To wander in mind or intellect; to be delirious; to talk
      or act irrationally; to be wild, furious, or raging, as a
      madman.
      [1913 Webster]

            In our madness evermore we rave.      --Chaucer.
      [1913 Webster]

            Have I not cause to rave and beat my breast?
                                                  --Addison.
      [1913 Webster]

            The mingled torrent of redcoats and tartans went
            raving down the valley to the gorge of
            Killiecrankie.                        --Macaulay.
      [1913 Webster]

   2. To rush wildly or furiously. --Spenser.
      [1913 Webster]

   3. To talk with unreasonable enthusiasm or excessive passion
      or excitement; -- followed by about, of, or on; as, he
      raved about her beauty.
      [1913 Webster]

            The hallowed scene
            Which others rave of, though they know it not.
                                                  --Byron.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Raving \Rav"ing\ (r[=a]v"[i^]ng), a.
   Talking irrationally and wildly; as, a raving lunatic. --
   Rav"ing*ly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

raving
    adv 1: in a raving manner; "raving mad" [syn: raving,
           ravingly]
    n 1: declaiming wildly; "the raving of maniacs"

Moby Thesaurus II by Grady Ward, 1.0:

165 Moby Thesaurus words for "raving":
   Dionysiac, abandoned, afebrile delirium, amok, anarchic, angry,
   babble, babbling, bacchic, balderdash, beaming, bellowing, berserk,
   blooming, bluster, blustering, blusterous, blustery, boisterous,
   bombast, brainstorm, bright, brilliant, bullying, bunk, bunkum,
   carried away, chaotic, claptrap, corybantic, crazed, crazy,
   dazzling, delirious, deliriousness, delirium, demoniac, desperate,
   devastating, distracted, divine, dizzy, ecstatic, enraged,
   enraptured, extraordinary, feral, ferocious, fierce, fighting mad,
   flatulence, frantic, frenetic, frenzied, fulminating, fuming,
   furious, fustian, gab, gabble, gibberish, giddy, glamorous,
   glorious, glowing, gorgeous, grandiloquence, great, haggard,
   heavenly, hectoring, hellish, hog-wild, hopping mad, hot air,
   howling, hyperbole, hysterical, in a rage, in a transport,
   in hysterics, incoherence, incoherent, infuriate, infuriated,
   insane, insensate, intoxicated, irrational, killing, lightheaded,
   like one possessed, lingual delirium, mad, madding, maenadic,
   magniloquence, maniac, maniacal, manic, mindless, noisy, off,
   orgasmic, orgastic, orgiastic, outstanding, pandemoniac,
   phenomenal, pomposity, possessed, puffery, rabid, radiant, raging,
   rambling, ramping, rant, ranting, rare, ravening, raving mad,
   ravished, ravishing, resplendent, rhetoric, rip-roaring, roaring,
   roaring mad, rodomontade, roistering, roisterous, rollicking,
   running mad, running wild, savage, shining, sparkling, splendid,
   splendorous, splendrous, stark-raving mad, storming, stormy,
   striking, stunning, sublime, swaggering, swashbuckling, swashing,
   tempestuous, transported, troublous, tumultuous, turbulent,
   uncommon, uncontrollable, unusual, uproarious, vaporing, violent,
   wandering, wild, wild-eyed, wild-looking