Etymology: Middle English, from Old English hlūd; akin to Old High German hlūt loud, Latin inclutus famous, Greek klytos, Sanskrit śṛṇoti he hears
Date: before 12th century
a. marked by intensity or volume of sound
b. producing a loud sound
2. clamorous, noisy
3. obtrusive or offensive in appearance or smell ; obnoxious
• loud adverb
• loudly adverb
loud, stentorian, earsplitting, raucous, strident mean marked by intensity or volume of sound.
loud applies to any volume above normal and may suggest undue vehemence or obtrusiveness <loud shouts of protest>. stentorian implies great power and range <an actor with a stentorian voice>. earsplitting implies loudness that is physically discomforting <the earsplitting sound of a siren>. raucous implies a loud harsh grating tone, especially of voice, and may suggest rowdiness <the raucous shouts of drunken revelers>. strident implies a rasping discordant but insistent quality, especially of voice <the strident voices of hecklers>.
New Collegiate Dictionary. 2001.