Police
Part of speech: noun
Definition: An organisation granted the legal authority to enforce the law. See usage note. Members of the police force. (plural=police) A police officer
Part of speech: verb
Definition: To enforce the law and keep order among (a group). To patrol an area.
Example sentence: We Americans have no commission from God to police the world.
Patrol
Part of speech: noun
Definition: 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.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.The guard or men who go the rounds for observation; a detachment whose duty it is to patrol.Any perambulation of a particular line or district to guard it; also, the men thus guarding; as, a customs patrol; a fire patrol.
Part of speech: verb
Definition: To go the rounds along a chain of sentinels; to traverse a police district or beat.To go the rounds of, as a sentry, guard, or policeman; as, to patrol a frontier; to patrol a beat.
Example sentence: No level of border security, no wall, doubling the size of the border patrol, all these things will not stop the illegal migration from countries as long as a 7-year-old is desperate enough to flee on her own and travel the entire length of Mexico because of the poverty and the violence in her country.