dissonance vs rough-and-tumble

dissonance

noun
  • An instance of disharmony or disjunction; a clash. 

  • A harsh, discordant combination of sounds. 

  • Conflicting notes that are not overtones of the note or chord sounding. 

  • A state of disagreement or conflict. 

rough-and-tumble

noun
  • Rough activity; fighting or brawling; a fight. 

  • An environment of rough activity 

  • A person who characteristically engages in such activity 

verb
  • Engage in rough-and-tumble activity 

adj
  • active, vigorous and rough, with the possibility of harm 

  • highly competitive 

How often have the words dissonance and rough-and-tumble occurred in a corpus of books? (source: Google Ngram Viewer )