caw vs thrill

caw

noun
  • The harsh cry of a crow. 

verb
  • To make the harsh cry of a crow, rook, or raven. 

intj
  • A rendering of the vocalisation of a crow or other corvid. 

thrill

noun
  • A breathing place or hole; a nostril, as of a bird. 

  • A cause of sudden excitement; a kick. 

  • A slight quivering of the heart that accompanies a cardiac murmur. 

  • A trembling or quivering, especially one caused by emotion. 

verb
  • To drill and thread in one operation, using a tool bit that cuts the hole and the threads in one series of computer-controlled movements. 

  • To suddenly excite someone, or to give someone great pleasure; to (figuratively) electrify; to experience such a sensation. 

  • To (cause something to) tremble or quiver. 

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