| Abbreviation | Definition |
|---|---|
| PD | Projective Dimension |
| PDE | Paint Design Engineering |
| PDL | Pre-Designed Layout |
| PE | Price to Engineers |
| PE | Professional Engineer |
| PEA | Philadelphia Emerging Architects |
| PEAA | Patterns of Enterprise Application Architecture |
| PEB | Pre Engineered Building |
| PEMB | Pre-Engineered Metal Building |
| PHD | Post Hole Digging |
| PICV | Pressure-Independent Control Valve |
| PID | Piping and Instrumentation Diagram |
| PLEA | Passive and Low Energy Architecture |
| PLEA | Passive Low Energy Architecture |
| PMI | Plumbing Manufacturers International |
| PMLA | Preserving Modern Landscape Architecture |
| PNP | Plan And Profile |
| Po | Chamber Pot (from the French - pot de chambre) |
| POD | Portobello Open Door |
| POPS | Privately Owned Public Space(s) |
