| Acronym | Meaning |
| PA | Pascal - Protactinium |
| RIF | Reduction In Force (layoffs) - Resistance Index For Frostbite |
| GFI | Ground Fault Interruptor (aka GFCI) |
| CDC | Centers For Disease Control And Prevention - Control Data Corporation - Cult Of The Dead Cow |
| ZC | Zettacoulomb |
| DNA | U.S. Defense Nuclear Agency - DeoxyriboNucleic Acid - Douglas No?l Adams |
| ADOA | Air Defence Operations Area |
| FAI | F?d?ration A?ronautique Internationale (French |
| FACS | Formal Aspects Of Computing Science - Fluorescent-activated Cell Sorting |
| PSA | Paralysis Society Of America - Pharmaceutical Society Of Australia - Pressure-Sensitive Adhesive - Production Services Association - Prostate Specific Antigen - Public Service Announcement - Public Service Association |