Personal Identification Number 
Personal Internet Name 
Position Indicator 
Pacific Island Network 
Password Identification Number 
Person In Need 
Personnel Increment Number 
Pesticide Information Network 
PIN used on the Base-Band Level 
PIN used on the User Interface Level 
Plan Identification Number 
Plant Information Network 
PN junction with Isolated region 
POLICE INFORMATION NETWORK 
Positive Intrinsic Negative 
Positive-doped/Intrinsic/Negative-dope… 
Power input 
Primary Insured Number 
Primate Info Net 
Procedure Interrupt Negative 
Process Identification Number 
Procurement Information Notice 
Procurement Installation Number 
Product Identification Number 
Production Identification Number 
Project Idea Note 
Project Identification Number 
prostatic intraepithelial neoplasia 
Public Infrastructure Network 
Pacific International Airlines