grouping vs structuring

grouping

noun
  • The action of the verb to group. 

  • A collection of things or people united as a group. 

  • Shot grouping. 

structuring

noun
  • structure; organization 

  • Synonym of smurfing (“money-laundering technique”) 

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