Shrill \Shrill\, v. t.
   To utter or express in a shrill tone; to cause to make a
   shrill sound.
   
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         How poor Andromache shrills her dolors forth. --Shak.
   
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Shrill \Shrill\, a. [Compar. {Shriller}; superl. {Shrillest}.]
   [OE. shril, schril; akin to LG. schrell, G. schrill. See
   {Shrill},v. i.]
   Acute; sharp; piercing; having or emitting a sharp, piercing
   tone or sound; -- said of a sound, or of that which produces
   a sound.
   
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         Hear the shrill whistle which doth order give
         To sounds confused.                      --Shak.
   
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         Let winds be shrill, let waves roll high. --Byron.
   
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Shrill \Shrill\, n.
   A shrill sound. [Obs.] --Spenser.
   
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Shrill \Shrill\, v. i. [imp. & p. p. {Shrilled}; p. pr. & vb. n.
   {Shrilling}.] [OE. schrillen, akin to G. schrillen; cf. AS.
   scralletan to resound loudly, Icel. skr["o]lta to jolt, Sw.
   skr[aum]lla to shrill, Norw. skryla, skr?la. Cf. {Skirl}.]
   To utter an acute, piercing sound; to sound with a sharp,
   shrill tone; to become shrill.
   
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         Break we our pipes, that shrilledloud as lark.
                                                  --Spenser.
   
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         No sounds were heard but of the shrilling cock.
                                                  --Goldsmith.
   
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         His voice shrilled with passion.         --L. Wallace.
   
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shrill
     adj : high-pitched and sharp; "piercing screams"; "a shrill
           whistle" [syn: {piercing}, {sharp}]
     v : utter a shrill cry [syn: {shriek}, {pipe up}, {pipe}]

80 Moby Thesaurus words for "shrill":
   absonant, acute, argute, atonal, cacophonous, caterwaul, cracked,
   creak, creaky, diaphonic, disconsonant, discordant, disharmonic,
   disharmonious, dissonant, ear-piercing, ear-splitting, flat,
   grating, harsh, high, high-pitched, howl, howling, immelodious,
   inharmonic, inharmonious, keen, keening, musicless, nonmelodious,
   off, off-key, off-tone, out of pitch, out of tone, out of tune,
   penetrating, piercing, pipe, piping, raucous, reedy, screak,
   screaky, scream, screech, screeching, screechy, sharp, shriek,
   shrieking, shrieky, skirl, skreigh, sour, squawk, squeak,
   squeaking, squeaky, squeal, strident, thin, treble, tuneless,
   ululant, ululation, unharmonious, unmelodious, unmusical,
   untunable, untuned, untuneful, wail, wailing, whine, whining,
   whistle, whistling, yammer