| Acronym | Sense | Language | Topics |
|---|---|---|---|
| PP | Polypropylen | In English | → Plastic industry |
| PP | Polypropylene | In English | → Plastic industry → Chemicals → Chemistry |
| PP | Préfecture de Police | In French | → Police |
| PP | Partial Pressure | In English | |
| PP | Peak to Peak | In English | |
| PP | Planning Package | In English | |
| PP | Power Plant | In English | → Energy economics → Electrical engineering |
| PP | Premodulation Processor | In English | → Electronics |
| PP | Push-Pull | In English | |
| PP | Pacanowski-Philander | In many languages |