blur vs transparency

blur

noun
  • Something that appears hazy or indistinct 

  • A smear, smudge or blot 

verb
  • To cause imperfection of vision in; to dim; to darken. 

  • To become indistinct. 

  • To transfer the input focus away from. 

  • To smear, stain or smudge. 

  • To make indistinct or hazy, to obscure or dim. 

adj
  • In a state of doubt or confusion. 

transparency

noun
  • A translucent film-like material with an image imprinted on it, viewable by shining light through it. 

  • Sufficient accuracy to make the compressed result perceptually indistinguishable from the uncompressed input. 

  • The quality of being transparent; transparence. 

  • A transparent artwork, viewable by shining light through it. 

  • A transparent object. 

  • Openness; accessibility to scrutiny. 

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