rec vs recreation

rec

noun
  • A recreation ground. 

  • A recommendation or suggestion. 

verb
  • To recommend. 

  • To record. 

recreation

noun
  • Any activity, such as play, that amuses, diverts or stimulates. 

  • The result of this process. 

  • The process of creating something again. 

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