litter vs police

litter

noun
  • Material used as bedding for animals. 

  • A platform mounted on two shafts, or a more elaborate construction, designed to be carried by two (or more) people to transport one (in luxury models sometimes more) third person(s) or (occasionally in the elaborate version) a cargo, such as a religious idol. 

  • Collectively, items discarded on the ground. 

  • A covering of straw for plants. 

  • Absorbent material used in an animal's litter tray 

  • The offspring of a mammal born in one birth. 

  • Layer of fallen leaves and similar organic matter in a forest floor. 

verb
  • To drop or throw trash without properly disposing of it (as discarding in public areas rather than trash receptacles). 

  • To give birth to, used of animals. 

  • To strew (a place) with scattered articles. 

  • To supply (cattle etc.) with litter; to cover with litter, as the floor of a stall. 

  • To scatter carelessly about. 

  • To be supplied with litter as bedding; to sleep or make one's bed in litter. 

  • To produce a litter of young. 

police

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

  • 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 litter and police occurred in a corpus of books? (source: Google Ngram Viewer )