hairline vs sheen

hairline

noun
  • A very thin fissure. 

  • A fishing line made from hair. 

  • The line along one's forehead where hair starts growing. 

  • A very thin line in writing, drawing, or typography. 

adj
  • very thin, as thin as a hair 

sheen

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

  • Splendor; radiance; shininess. 

  • The letter ش in the Arabic script. 

verb
  • To shine; to glisten. 

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

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