hiding vs materialization

hiding

noun
  • A state of concealment. 

  • A place of concealment. 

  • A beating or spanking. 

  • Skinning (of an animal) to yield a hide (for human use). 

materialization

noun
  • The creation of a temporary table containing the results of a database query. 

  • The conversion of something into a physical form 

  • The conversion of energy into mass 

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