approximate vs on target

approximate

adj
  • Nearing correctness; nearly exact; not perfectly accurate. 

  • Approaching; proximate; nearly resembling. 

verb
  • To come near to; to approach. 

  • To carry or advance near; to cause to approach. 

  • To estimate. 

on target

prep
  • Towards the goal. 

  • With accuracy. 

  • Accurate, or accurately predicted. 

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