| Acronym | Meaning |
 | PSI | Portable Source Initiative |
| MBTI | Myers-Briggs Type Indicator |
| FAI | F?d?ration A?ronautique Internationale (French |
| FX | Firefox -Metropolitan France (ISO 3166 Digram; Obsolete 1997) |
| IEA | International Energy Agency |
| ICSI | Intracytoplasmic Sperm Injection |
| ABK | Abkhaz Language (ISO 639-2 Code) |
| POL | Petroleum, Oil, And Lubricant |
| HFEA | Human Fertilisation And Embryology Authority (UK) |
| SSRN | Nuclear-Powered Radar Picket Submarine (retired US Navy Hull Classification) |
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