carry out vs drop out

carry out

verb
  • To hold while moving it out. 

  • To execute or perform; to put into operation; to do. 

  • To fulfill. 

drop out

verb
  • Used other than figuratively or idiomatically: see drop, out. 

  • To leave (school, a race, etc.) prematurely and voluntarily. 

  • To be lost or momentarily interrupted. 

  • To opt out of conventional society. 

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