frothy vs sibilant

frothy

adj
  • Foamy or churned to the point of becoming infused with bubbles. 

  • lightweight; lacking depth or substance 

  • Highly speculative; having high risk and high return. 

noun
  • A serving of beer. 

sibilant

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

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

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