| Acronym | Meaning |
 | GREP | [search] Globally For Regular Expression |
| LRICBM | Limited Range ICBM |
| YSA | Youth Service America - Young Socialist Alliance |
| HN | Honduras (ISO 3166 Digram) |
| BGWG | Battle Group Wargame (military Simulation; Big Wig) |
| ICANN | Internet Corporation For Assigned Names And Numbers |
| NO | FEAR -Notification And Federal Employee Antidiscrimination Retaliation Act (2002) |
| IOC | Initial Operational Capability - Intergovernmental Oceanic Commission - International Olympic Committee - International Ornithological Congress |
| ORD | O'hare International Airport In Chicago |
| OBSS | Off Board Sensor Systems - Ordo Byantinus Sancti Sepulchri (Byzantine Order Of The Holy Sepulchre) - Orbiter Boom Sensor System (space Shuttle) - Origins Billion Star Survey |
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