Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

   NOUN:LOUDNESS, power; vociferation uproariousness.
  DIN, loud noise, clang, clangor, clatter, noise, bombilation, roar, uproar, racket, clutter, hullabaloo, pandemonium, hell let loose; outcry [See Cry]; hubbub; explosion, detonation; bobbery, fracas, charivari.
  BLARE, trumpet blast, flourish of trumpets, fanfare, tintamarre [archaic]; blast; peal, swell, larum [archaic], alarum, boom; resonance [See Resonance].
  lungs; stentor; megaphone; calliope, steam siren, steam whistle; watchman’s rattle.
  [COMPARISONS] artillery, cannon, guns, bombs, shells, barrage; thunder.
   VERB:BE LOUD &c. adj.; peal, swell, clang, boom, thunder, fulminate, bombilate [rare], roar; resound [See Resonance]; speak up, shout (vociferate) [See Cry]; bellow (cry as an animal) [See Ululation].
  CLATTER, clutter, racket, uproar [rare].
  REND THE AIR, rend the skies; fill the air; din -, ring -, thunder- in the ear; pierce -, split -, rend- the -ears, – head; deafen, stun; faire le diable à quatre [F.]; make one’s windows shake; awake the echoes, startle the echoes; give tongue.
   ADJECTIVE:LOUD, sonorous; high-sounding, big-sounding; deep, full, powerful, noisy, blatant, clangorous, multisonous; thundering, deafening &c. v.; trumpet-tongued; ear-splitting, ear-rending, ear-deafening; piercing; shrill [See Stridor]; obstreperous, rackety, uproarious; enough to wake the -dead, – seven sleepers; clamorous (vociferous) [See Cry]; stentorian, stentorophonic [obs.].
   ADVERB:LOUDLY &c. adj.; aloud; with one wild yell; at the top of one’s -lungs, – voice; lustily, in full cry.
  1. The air rings with.
  2. The deep dread-bolted thunder.—Lear
  3. On their hinges grate Harsh thunder.—Milton
  4. The trumpet’s loud clangor excites us to arms.—Dryden