AC vs uncharged

AC

phrase
  • as charged, as in: guilty as charged, usually a/c. 

name
  • Aceh, an autonomous province of Indonesia. 

  • Acre, a state of Brazil. 

noun
  • Companion of the Order of Australia. 

uncharged

adj
  • Not charged with a criminal act. 

  • Not carrying an overall electric charge; neutral. 

  • Without a heraldic charge. 

  • Not charged for; given away for free. 

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