| Acronym | Meaning |
| USAIC | U.S. Army Infantry Center - U.S. Army Intelligence Center |
| ABL | American Basketball League |
| CDM | Clean Development Mechanism (Kyoto Protocol) - Cold Dark Matter (astronomy) |
| CCRTS | Command And Control Research And Technology Symposium |
| YGO | Yu-Gi-Oh! |
| SAD | Seasonal Affective Disorder - Situational Awareness Display |
| OARSI | Osteoarthritis Research Society International |
| CAT | Catalan Language (ISO 639-2 Code) |
| BO | Back Orifice -Belarus (FIPS 10-4 Country Code) - Bolivia (ISO 3166 Digram) -Body Odor |
| PWL | PieceWise Linear (describing A Mathematical Function) |