crease vs smoothness

crease

noun
  • A crack. 

  • One of the white lines drawn on the pitch to show different areas of play; especially the popping crease, but also the bowling crease and the return crease. 

  • The circle around the goal, where no offensive players can go. 

  • A line or mark made by folding or doubling any pliable substance; hence, a similar mark, however produced. 

  • The goal crease; an area in front of each goal. 

verb
  • To make a crease in; to wrinkle. 

  • To laugh. 

  • To lightly bloody; to graze. 

  • To undergo creasing; to form wrinkles. 

smoothness

noun
  • The highest order of derivative (the differentiability class) over a given domain. 

  • The condition of being smooth; the degree or measure of said condition. 

  • The quantity measured by the modulus of smoothness. 

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