ribbit vs shrill

ribbit

verb
  • To make the sound of a frog or toad. 

intj
  • The vocal sound made by a frog or toad. 

  • Used to anonymously and disrespectfully break silence, as in educational or ceremonial settings 

noun
  • The vocal sound made by a frog or toad. 

shrill

verb
  • To make a shrill noise. 

adj
  • Sharp or keen to the senses. 

  • Having a shrill voice. 

  • Fierce, loud, strident. 

  • High-pitched and piercing. 

noun
  • A shrill sound. 

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