| Acronym | Meaning |
 | IPN | Instytut Pamieci Narodowej (Polish |
| OSIA | (U.S.) On-Site Inspection Agency |
| WSTC | Women Signallers Territorial Corps (WWII UK) |
| EBO | Effects Based Operations - Encyclop?dia Britannica Online - European Board Of Ophthalmology |
| EWSD | Elektronisches W?hlsystem Digital (German |
| OPSI | Overwhelming Post Splenectomy Infection - UK Office Of Public Sector Information |
| ANOVA | ANalysis Of VAriance |
| KPNO | Kitt Peak National Observatory |
| ELINT | Electronic Intelligence |
| BRI | Bathroom Readers Institute (publishers Of Series Of Uncle John's Bathroom Readers Books) |
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