patrol vs squad

patrol

noun
  • A unit of a troop, usually defined by certain ranks or age groups within the troop, and ideally comprised of six to eight members. 

  • A movement, by a small body of troops beyond the line of outposts, to explore the country and gain intelligence of the enemy's whereabouts. 

  • Any perambulation of a particular line or district to guard it; also, the people thus guarding. 

  • The largest division of officers within a police department or sheriff's office, whose assignment is to patrol and respond to calls for service. 

  • A going of the rounds along the chain of sentinels and between the posts, by a guard, usually consisting of three or four men, to insure greater security from attacks on the outposts. 

  • The guards who go the rounds for observation; a detachment whose duty it is to patrol. 

verb
  • To go the rounds of, as a sentry, guard, or policeman 

  • To go the rounds along a chain of sentinels; to traverse a police district or beat. 

squad

noun
  • A unit of tactical military personnel, or of police officers, usually of about ten members. 

  • Sloppy mud. 

  • One's friend group, taken collectively; one's peeps. 

  • A group of potential players from whom a starting team and substitutes are chosen. 

  • A collective noun for a group of squid. 

verb
  • To act as part of, or on behalf of, a squad. 

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