sibilant vs vibrant

sibilant

noun
  • A consonant having a hissing or hushing sound such as the s or sh in sack or shack. 

adj
  • Characterized by a hissing or hushing sound such as the s or sh in sack or shack. 

vibrant

noun
  • Any of a class of consonants including taps and trills. 

adj
  • Pulsing with energy or activity. 

  • Vibrating, resonant or resounding. 

  • Bright. 

  • Lively and vigorous. 

How often have the words sibilant and vibrant occurred in a corpus of books? (source: Google Ngram Viewer )