alarm bell vs dread

alarm bell

noun
  • A sudden awareness of danger. 

  • Used other than figuratively or idiomatically: see alarm, bell. 

dread

noun
  • Great fear in view of impending evil; fearful apprehension of danger; anticipatory terror. 

  • A Rastafarian. 

  • Somebody or something dreaded. 

  • Reverential or respectful fear; awe. 

verb
  • To be in dread, or great fear. 

  • To style (the hair) into dreadlocks. 

  • To fear greatly. 

  • To anticipate with fear. 

adj
  • Terrible; greatly feared; dreaded. 

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