Police is defined as members of law enforcement, or people vested with the power to make or enforce rules in a certain area or on a certain topic.(noun)
Police means to enforce the rules, or to enforce law and order.(verb)
When you patrol an area to make sure that the laws are being followed, this is an example of when you police the area.
See police in Webster's New World College Dictionary
Origin: Fr < LL politia, administration of the commonwealth (in L, the state) < Gr politeia, the state, citizenship < politēs, citizen < polis, city < IE *pel-, fortress (> Sans pūr, town), orig., filled wall, special use of base *pel-, to flow, fill > full
See police in American Heritage Dictionary 4
noun pl. police
Origin: , from Old French policie, civil organization
Origin: , from Late Latin polītīa
Origin: , from Latin, the State
Origin: , from Greek polīteia
Origin: , from polītēs, citizen
Origin: , from polis, city; see pelə-3 in Indo-European roots.
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