PNP is an acronym for a wide range of terms. One of the most common meanings of PNP is "Plug and Play". This refers to the ability of a device to work right after it is plugged in without the need for any configuration. Other meanings of PNP include "Philippine National Police", which is the police force of the Philippines, and "Positive-negative-positive", which is a type of transistor electrical configuration. PNP can also refer to "Personals and Property", "Public and Private", "Pay and Purchase", "Penetration and Permeation", and "Patterned Nanowires and Nanoparticles". The diverse range of meanings for PNP illustrate the importance of context when interpreting this acronym.