English abbreviations from pins to pip
- PINS (Persons In Need of Support)
- PINT (Pint Is Not Twian)
- PINTL (Production Interpretation)
- PIO (Capitán FAP Renán Elías Olivera Airport)
- PIOCS (Physical Input/Output Control System)
- PIOGA (Pennsylvania Independent Oil and Gas Association)
- PIOS (Programmable Integrated Ordnance Suite)
- PIOTA (Pull It Out of The Air)
- PIP (Product Improvement Programme)