| Meaning | Category |
| PPG Industries, Inc. | Business->NYSE Symbols |
| Pages; reference on more than one page | Academic & Science->Libraries |
| Pago Pago, American Samoa | Regional->Airport Codes |
| Palm Product Germany | Business->Firms |
| Persistent Programming Group | Computing->General |
| Personal Program Guide | Community->Media |
| Personnel Priority Group | Governmental->Military |
| Peter P. Groumpos | Community->Famous |
| Phased Plasma Gun | Miscellaneous->Science Fiction |
| Phased Protoplasm Gun | Miscellaneous->Science Fiction |
| Pittsburgh Paint and Glass | Business->Firms |
| Planning Policy Guidance | Governmental->US Government |
| Policy and Procedural Guidance | Governmental->US Government |
| Portable Plasma Gun | Miscellaneous->Science Fiction |
| Portable Pulse Generator | Academic & Science->Electronics |
| Postprandial glucose | Medical->Laboratory |
| Power Play Goal | Community->Sports |
| Power Puff Girls | Miscellaneous->Funnies |
| Programmable Pulse Generator | Academic & Science->Electronics |
| Project Planning Group | Governmental->Military |
| Protection Planning Group | Business->General Governmental->Military Governmental->US Government |
| Public And Publicly Guaranteed | Business->General |
| Public Participation Guidelines | Governmental->US Government |
| Pulsed Plasma Gun | Governmental->Military |
| Push Proxy Gateway | Computing->Networking |
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