brightness vs sheen

brightness

noun
  • The quality of being bright. 

  • Intelligence, cleverness. 

  • The perceived luminance of an object. 

sheen

noun
  • Splendor; radiance; shininess. 

  • A thin layer of a substance (such as oil) spread on a solid or liquid surface. 

  • The letter ش in the Arabic script. 

verb
  • To shine; to glisten. 

adj
  • Beautiful, good-looking, attractive; radiant; shiny. 

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