coherence vs confusion

coherence

noun
  • The property of having the same wavelength and phase. 

  • A logical arrangement of parts, as in writing. 

  • A semantic relationship between different parts of the same text. 

  • The quality of cohering, or being coherent; internal consistency. 

  • The quality of forming a unified whole. 

confusion

noun
  • The act of mistaking one thing for another or conflating distinct things. 

  • A lack of clarity or order. 

  • The state of being confused; misunderstanding. 

  • Lack of understanding due to dementia. 

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