What does PIF stand for?

Insured Municipal Income Fund - NYSE symbol

Insured Muni Income Fd - NYSE symbol

Package Information Form (IAA)

Page Image Format (SAUS)

Paid In Full (SAUS)

PaineWebber Premium Insured Municipal Income - NYSE symbol (SPSG)

Pakistan Islamic Front - Pakistan - Political party

Paper Industry Federation (NADA)

Paratoid Isoelectric Focusing - Medicine - Variant protein (EDAA)

Partners in Friendship (EA)

Payload Integration Facility - NASA (KSC)

Peak Inspiratory Flow - Medicine (AAMN)

Perpetual Inventory File (DNAB)

Personnel Identification Feature - Navy (NVT)

Phase Interface Fading (VLIE)

Phase Inversion Formulation - Chemistry

Photo Interpretation Facility (SAUS)

Picture Interchange Format File (SAUS)

Pilot Information File - Army

Pingelapese - Language code (ETLW)

Pistolet Flobert - NCIC firearms make code (NCIC)

Place in Inactive File - Army

Point Initiating Fuze

Polyisocyanurate Foam (IGSL)

Porportional-Integral Filter (SAUS)

Positive Identification Feature (MCD)

Positive Identification Friend/Foe (SAUS)

Postscript Interchange Format (SAUS)

Predictive Influence Function - Statistics

Preparer Inventory File - IRS

Privatization Investment Fund Trust Units - Toronto Stock Exchange symbol

Problem Identification Form (ARMP)

Process Interchange Format - Computer science (VLIE)

Procurement Information Form - Public Works and Government Services Canada (CGA)

Productivity Investment Fund - Program - Air Force

Program Information File

Programmable Interface - Computer science (VLIE)

Proinsulin-Free - Medicine (DB)

Project in Foreign Language Pedagogy (AIE)

Prolactin Inhibiting Factor - Endocrinology (DAVI)

Prolactin-Release Inhibiting Factor - Also, PRIH - Endocrinology

Proliferation Inhibitory Factor - Immunochemistry

Proportional-Integral Filter (SAUS)

Prostatic Interstitial Fluid - Medicine (MELL)

Provision of Industrial Facilities - Army (AABC)

Prudential Intermediate Income Fund, Inc. - NASDAQ symbol (COMM)

Pseudo-Identification Feature (MCD)

Punjab Irregular Force - British military (DMA)