coma vs dream

coma

noun
  • A state of unconsciousness from which one may not wake up, usually induced by some form of trauma. 

  • A tuft or bunch, such as the assemblage of branches forming the head of a tree, a cluster of bracts when empty and terminating the inflorescence of a plant, or a tuft of long hairs on certain seeds. 

  • A cloud of dust surrounding the nucleus of a comet. 

  • A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points. 

dream

noun
  • Imaginary events seen in the mind while sleeping. 

  • A visionary scheme; a wild conceit; an idle fancy. 

  • A hope or wish. 

verb
  • To hope, to wish. 

  • To see imaginary events in one's mind while sleeping. 

  • To envision as an imaginary experience (usually when asleep). 

  • To consider the possibility (of). 

  • To daydream. 

adj
  • Ideal; perfect. 

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