The Collaborative International Dictionary of English v.0.48:

Peal \Peal\ (p[=e]l), n. [Etymol. uncertain.] (Zool.)
   A small salmon; a grilse; a sewin. [Prov. Eng.]
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The Collaborative International Dictionary of English v.0.48:

Peal \Peal\, v. i.
   To appeal. [Obs.] --Spencer.
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The Collaborative International Dictionary of English v.0.48:

Peal \Peal\, n. [An abbrev. of F. appel a call, appeal, ruffle
   of a drum, fr. appeller to call, L. appellare. See Appeal.]
   1. A loud sound, or a succession of loud sounds, as of bells,
      thunder, cannon, shouts, of a multitude, etc. "A fair peal
      of artillery." --Hayward.
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            Whether those peals of praise be his or no. --Shak.
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            And a deep thunder, peal on peal, afar. --Byron.
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   2. A set of bells tuned to each other according to the
      diatonic scale; also, the changes rung on a set of bells.
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   To ring a peal. See under Ring.
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The Collaborative International Dictionary of English v.0.48:

Peal \Peal\, v. i. [imp. & p. p. Pealed (p[=e]ld); p. pr. &
   vb. n. Pealing.]
   1. To utter or give out loud sounds.
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            There let the pealing organ blow.     --Milton.
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   2. To resound; to echo.
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            And the whole air pealed
            With the cheers of our men.           --Longfellow.
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The Collaborative International Dictionary of English v.0.48:

Peal \Peal\, v. t.
   1. To utter or give forth loudly; to cause to give out loud
      sounds; to noise abroad.
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            The warrior's name,
            Though pealed and chimed on all the tongues of fame.
                                                  --J. Barlow.
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   2. To assail with noise or loud sounds.
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            Nor was his ear less pealed.          --Milton.
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   3. To pour out. [Prov. Eng.] --Halliwell.
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WordNet (r) 3.0 (2006):

peal
    n 1: a deep prolonged sound (as of thunder or large bells) [syn:
         peal, pealing, roll, rolling]
    v 1: ring recurrently; "bells were pealing"
    2: sound loudly and sonorously; "the bells rang" [syn: ring,
       peal]

Moby Thesaurus II by Grady Ward, 1.0:

110 Moby Thesaurus words for "peal":
   awake the dead, bay, beep, bell, blare, blast, blast the ear, blat,
   blow, blow the horn, bong, boom, booming, bray, bugle, cannonade,
   carillon, change ringing, chime, chiming, chink, clamor, clang,
   clanging, clangor, clank, clanking, clap, clarion, clink, crash,
   crescendo, deafen, din, ding, ding-a-ling, dingdong, dinging,
   dingle, dong, donging, fanfare, fill the air, flourish of trumpets,
   gong, growl, grumble, honk, jangle, jingle, jingle-jangle,
   jinglejangle, jingling, knell, knelling, peal ringing, pealing,
   pipe, rattle the windows, rend the air, rend the ears, resonate,
   resound, reverberate, reverberation, ring, ring changes, ringing,
   rise, roar, rock the sky, roll, rumble, shriek, sound,
   sound a knell, sound a tattoo, sound taps, split the eardrums,
   split the ears, squeal, startle the echoes, stun, surge, swell,
   tantara, tantarara, taps, tarantara, tattoo, thunder, ting,
   ting-a-ling, tingle, tingling, tink, tinkle, tinkling, tinnitus,
   tintinnabulate, toll, tolling, toot, tootle, trumpet,
   trumpet blast, trumpet call, tweedle, whistle, wind