more and more vs much

more and more

det
  • Increasingly more; a growing number of; a growing quantity of. 

adv
  • Indicates that the statement is becoming progressively more true. 

  • In a manner that progressively increases. 

  • Progressively more. 

much

det
  • A large amount of. 

  • Many ( + plural countable noun). 

  • Used to indicate, demonstrate or compare the quantity of something. 

adv
  • Often; frequently. 

  • Used to indicate or compare extent. 

  • To a great extent. 

pron
  • A large amount or great extent. 

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