groan vs tremble

groan

noun
  • A low creaking sound from applied pressure or weight. 

  • A low, mournful sound uttered in pain or grief. 

  • A low, guttural sound uttered in frustration, disapproval, or ecstasy. 

verb
  • To seemingly creak under the strain of being heavily laden. 

  • To make a groan. 

tremble

noun
  • A shake, quiver, or vibration. 

verb
  • To shake, quiver, or vibrate. 

  • To fear; to be afraid. 

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