M vs k

M

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

name
  • Michigan. 

noun
  • the number of minutes a player spent at the crease 

  • Monsieur 

  • A film with the content rating M. 

  • the number of maiden overs bowled 

k

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

  • The first letter of callsigns allocated to American broadcast television and radio stations west of the Mississippi river. 

noun
  • A kilobyte (more formally KB or kB). 

  • A kilobit (more formally kb), especially in measuring Internet connection. 

  • kilometre or kilometres. 

  • thousand or thousands. 

  • The SI measurement value of 1,000 

intj
  • OK 

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