The definition of apb is an abbreviation for all points bulletin which is a bulletin between police agencies which is a wanted person and provides directions regarding the apprehension of the specific suspect.(abbreviation)
An example of an APB would be a call from one police station to another specifying to arrest a known gangmember in their district who is suspect of a crime.
See APB in Webster's New World College Dictionary
See APB in American Heritage Dictionary 4
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