| Abbreviation | Definition |
|---|---|
| PP | Per Person |
| PPB | Parts Per Billion |
| PPBV | Parts Per Billion by Volume |
| PPD | Packs Per Day |
| PPF | Past Present And Future |
| PPH | Problems Per Hundred |
| PPI | Pages Per Inch |
| PPI | Particles Per Inch |
| PPI | Parts Per Inch |
| PPI | Pixels Per Inch |
| PPI | Points Per Inch |
| PPL | Parts Per Litre |
| PPL | Pence Per Liter |
| PPM | Particles Per Million |
| PPM | Parts Per Million |
| PPM | Parts Per Mllion |
| PPM | Peaks Per Minute |
| PPM | Pictures Per Mile |
| PPM | Pints Per Milliliter |
| PPM | Points Per Minute |