read through vs recap

read through

verb
  • To thoroughly read something to check or proofread it 

  • To read and obey a signal that is beyond the applicable one (often mistakenly) 

  • To read a script out loud casually with other actors but without blocking 

recap

verb
  • To recapitulate. 

  • To replace the worn tread on a tire by gluing a new outer portion. (US English only - Retread in UK English) 

  • To seal (something) again with a cap. 

  • To replace capacitors in electronic equipment. 

noun
  • A tire that has had new tread glued on. 

  • A leveraged recapitalization accomplished by increasing the debt to equity ratio. 

  • A recapitulation. 

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