[suh-nawr-uhs, -nohr-, son-er-uhs]
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  1. giving out or capable of giving out a sound, especially a deep, resonant sound, as a thing or place: a sonorous cavern.
  2. loud, deep, or resonant, as a sound.
  3. rich and full in sound, as language or verse.
  4. high-flown; grandiloquent: a sonorous speech.

Origin of sonorous

1605–15; < Latin sonōrus noisy, sounding, equivalent to sonōr-, stem of sonor sound (son(āre) to sound1 + -or -or1) + -us -ous
Related formsso·no·rous·ly, adverbso·no·rous·ness, nounmul·ti·so·no·rous, adjectivemul·ti·so·no·rous·ly, adverbmul·ti·so·no·rous·ness, nounun·so·no·rous, adjectiveun·so·no·rous·ly, adverbun·so·no·rous·ness, noun

Synonyms for sonorous

See more synonyms for on Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sonorousness

Historical Examples of sonorousness

British Dictionary definitions for sonorousness


  1. producing or capable of producing sound
  2. (of language, sound, etc) deep or resonant
  3. (esp of speech) high-flown; grandiloquent
Derived Formssonority (səˈnɒrɪtɪ), nounsonorously, adverbsonorousness, noun

Word Origin for sonorous

C17: from Latin sonōrus loud, from sonor a noise
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sonorousness



1610s, from Latin sonorus "resounding," from sonor "sound, noise," from sonare "to sound" (see sonata). Related: Sonorously; sonorousness. Earlier was sonouse (c.1500), from Medieval Latin sonosus; sonourse "having a pleasing voice" (c.1400), from sonor + -y (2).

Online Etymology Dictionary, © 2010 Douglas Harper