| Acronym | Meaning |
 | OBS | Observation/Observer - Obsolete - Obstacle -Off Balance Sheet - Optical Burst Switching (IEEE) - Organic Brain Syndrome - Organization(al) Breakdown Structure |
| USFL | United States Football League |
| SART | Situational Awareness Rating Technique |
| ASBL | Association Sans But Lucratif (French Non-profit Organisation) |
| SWAT | Special Weapons And Tactics |
| SQI | Albanian Language (ISO 639-2 Code) |
| MOOTW | Military Operations Other Than War (moot-double-you) |
| KG | Kilogram - Kongo Language (ISO 639-1 Code) |
| POSSLQ | Person Of The Opposite Sex Sharing Living Quarters |
| ME | Maine (postal Symbol) -Mechanical Engineer[ing] - Medical Examiner - Middle East -Middle East Airlines (IATA Code) -Memory Effect - Myalgic Encephalomyelitis |
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