English abbreviations from pi to pic
- Pi (Probability of incapacitation)
- P.I (Philippines Islands)
- P.I. (Poni Jussit ("Ordered to be Placed"))
- PIA (Greater Peoria Regional Airport)
- PIAA (Pennsylvania Interscholastic Athletic Association)
- PIAC (Public Interest Advocacy Centre, The)
- PIAFS (Portable Inductive Artillery Fuze Setter)
- PIAG (Public Involvement Advisory Group)
- PIAS (Presque Isle Audubon Society)
- PIAT (Projector, Infantry, Anti Tank)
- PIB (Price and Incomes Board)
- PIBD (Point Initiating Base Detonated)
- PIC (Person In Charge)