convulsion vs rage

convulsion

noun
  • Violent turmoil. 

  • An uncontrolled fit, as of laughter; a paroxysm. 

  • An intense, paroxysmal, involuntary muscular contraction. 

rage

noun
  • Violent uncontrolled anger. 

  • A current fashion or fad. 

verb
  • To act or speak in heightened anger. 

  • To move with great violence, as a storm etc. 

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