make believe vs pretend

make believe

verb
  • To pretend or imagine. 

adj
  • imaginary; conjured in someone's imagination, especially when imagined by a child 

noun
  • The act of pretending that what is imaginary is real. 

pretend

verb
  • To make oneself appear to do or be doing something; to engage in make-believe. 

  • To claim, to allege, especially when falsely or as a form of deliberate deception. 

  • To feign, affect (a state, quality, etc.). 

  • To lay claim to (an ability, status, advantage, etc.). (originally used without to) 

noun
  • the act of engaging in pretend play. 

adj
  • Not really what it is represented as being; imaginary, feigned. 

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