| F.I. | For Instance 
| Others |
| F/I | Fever due to Infection
| Others |
| F/I | Field Installed
| Others |
| F/I | Final Inspection
| Others |
| F/I | Flame/Incendiary
| Others |
| F/I | Forced Induction
| Others |
| F/I | Furnish and Install
| Others |
| FI | Factory Integration
| Others |
| FI | Fairy Intelligence
| Others |
| FI | Faraday Isolator
| Others |
| FI | Farm Information
| Others |
| FI | Fault Identification
| Others |
| FI | Fee Index
| Others |
| FI | Femmes Invisible
| Others |
| FI | Ferromagnetic Insulation
| Others |
| FI | FI is
| Others |
| FI | Field Instrumentation
| Others |
| FI | Field Intelligence
| Others |
| FI | Field Investigation
| Others |
| FI | Film Industry
| Others |
| FI | Filterability Index
| Others |
| FI | Filtron
| Others |
| FI | Financial Institution
| Others |
| FI | Financial Intelligence
| Others |
| FI | Financial Intermediary
| Others |
| FI | Finite Information
| Others |
| FI | Finland
| Others |
| FI | Finnish
| Others |
| FI | Firenze (Provence)
| Others |
| FI | First Initial
| Others |
| FI | First Ink
| Others |
| FI | First Inversion
| Others |
| FI | Fiscal Intermediary
| Others |
| FI | Fizicheskii Institut, Moscow
| Others |
| FI | Flight Instrumentation
| Others |
| FI | Flow Indicator
| Others |
| FI | Fluid Injection
| Others |
| FI | for Airheads
| Others |
| FI | For Improve
| Others |
| FI | for in
| Others |
| FI | for in Internet
| Others |
| FI | For Is
| Others |
| FI | For It
| Others |
| FI | Foreign Intelligence
| Others |
| FI | Foresight Institute
| Others |
| FI | Forget It
| Others |
| FI | Formal Inspection
| Others |
| FI | Fourth International
| Others |
| FI | Fractional Integral
| Others |
| FI | Franklin Institute
| Others |
| FI | Franz Incorporated
| Others |
| FI | Fuel Ignition
| Others |
| FI | Fuel Injection
| Others |
| FI | Full Insurance
| Others |
| FI | Full Internet
| Others |
| FI | Functional Integration
| Others |
| FI | Fundamental Issue
| Others |
| FI | Microsoft Fortran Interface file
| Others |
| fi. | finnisch
| Others |