c vs ee

c

noun
  • The middle tone in either one of the sets of seven white keys on a keyboard or a set of seven strings on a stringed instrument. 

character
  • The third letter of the English alphabet, called cee and written in the Latin script. 

ee

noun
  • The name of the Latin-script letter E. 

  • Enantiomeric excess. 

intj
  • eh 

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