drive home vs reiterate

drive home

verb
  • To emphasize (a point) with tangible or powerful demonstration. 

  • Used other than figuratively or idiomatically: see drive, home. 

  • To push something into position completely by force. 

reiterate

verb
  • To say or do (something) for a second time, such as for emphasis. 

  • To say or do (something) repeatedly. 

noun
  • A tree with vertical branches alongside the main trunk and which continue to grow upwards. 

adj
  • Reiterated; repeated. 

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