What Does PN Stand For?

PN has more than one possible meaning :

• PN - Petanewton Pitcairn Islands ISO 3166 Digram
• PN - Piconewton
• PN - Planetary Nebula
• PN - Product Name
• PN - Pseudo Noise

If you know of another acronym for PN, please suggest it as a new acronym for PN.