- PNN
- Penn Engineering & Manufacturing Corporation (Business » NYSE Symbols)**** Parliamentary Names & Numbers (Governmental)** Probabilistic Neural Network (Computing » General)* Plokta News Network (Community » Media)* Product News Network (Business » General)* Product News Network (Business » Firms)* Positive News Network (Community » Media)* Phillips Neighborhood Network (Community)* Public News Network (Community » Media)* PeaksNewsNet (Business » Firms)* PeaksNewsNet (Community » Media)* Profesores Non-numerarios (International » Spanish)* Princeton, Maine USA (Regional » Airport Codes)* Pumpkin Nook News (Business » Firms)* Photo News Net (Community » Media)
Abbreviations dictionary. 2012.