cop vs police

cop

noun
  • A police officer or prison guard. 

  • The ball of thread wound on to the spindle in a spinning machine. 

  • A roughly dome-shaped piece of armor, especially one covering the shoulder, the elbow, or the knee. 

  • A tube or quill upon which silk is wound. 

  • A merlon. 

verb
  • To steal. 

  • To adopt. 

  • To obtain, to purchase (as in drugs), to get hold of, to take. 

  • To admit, especially to a crime or wrongdoing. 

  • To earn by bad behavior. 

  • Of a pimp: to recruit a prostitute into the stable. 

  • To (be forced to) take; to receive; to shoulder; to bear, especially blame or punishment for a particular instance of wrongdoing. 

  • To see and record a railway locomotive for the first time. 

police

noun
  • A department of local (usually municipal) government responsible for general law enforcement. 

  • The staff of such a department or agency, particularly its officers; (regional, chiefly US, Caribbean, Jamaica, Scotland, countable) an individual police officer. 

  • Any of the formally enacted law enforcement agencies at various levels of government. 

  • A branch of the Home Office responsible for general law enforcement within a specific territory. 

  • A public agency charged with enforcing laws and maintaining public order, usually being granted special privileges to do so, particularly 

  • People who try to enforce norms or standards as if granted authority similar to the police. 

  • Cleanup of a military facility, as a formal duty. 

verb
  • To clean up an area. 

  • To enforce norms or standards upon. 

  • To enforce the law and keep order among (a group). 

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