emphasis vs vehemence

emphasis

noun
  • Special weight or forcefulness given to something considered important. 

  • Special attention or prominence given to something. 

  • The phonetic or phonological feature that distinguishes emphatic consonants from other consonants. 

  • The use of boldface, italics, or other such formatting to highlight text. 

  • Prominence given to a syllable or words, by raising the voice or printing in italic or underlined type. 

vehemence

noun
  • An intense concentration, force or power. 

  • A wild or turbulent ferocity or fury. 

  • Eagerness, fervor, excessive strong feeling. 

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