Plan Position Indicator 
Producer Price Index 
proton-pump inhibitor 
Personal Priesthood Interview 
points per inch 
Programmable Peripheral Interface 
proton pump inhibitor 
pixels per inch 
Plane Position Indicator 
Planned Position Indicator 
Precise Pixel Interpolation 
Pressure Profile Instrument 
Pulse Position Indicator 
Payment Premium Insurance 
PDH Physical Interface 
personnel point of impact 
Planetary Plasma Interactions 
Policy proof of interest 
Pre-Plant Incorporated 
Present Position Indicator 
Producers Price Index 
Page Per Inch 
Pages Per Inch 
paired-pulse index 
paired-pulse inhibition 
Parallel Port Interface 
Parcel Post Insured 
Partnership for Policy Implementation 
Parts per Inch 
Past Performance Information