higher vs slashed

higher

noun
  • A national school-leaving examination and university entrance qualification. 

verb
  • To make higher; to raise or increase in amount or quantity. 

  • To ascend. 

slashed

adj
  • Having been slashed, cut or rent. 

  • Marked with a slash. 

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