| Acronym | Meaning |
| OSI | Office Of Strategic Influence - Ontario Swine Improvement - Open Source Initiative - Open Systems Interconnection |
| NG | Natural Gas - Next Generation -Niger (FIPS 10-4 Country Code) - Nigeria (ISO 3166 Digram) |
| SADD | Students Against Drunk Driving (national School Related Group) |
| EW | Electronic Warfare -Exawatt |
| TLD | Thermoluminescent Dosimeter - Top-Level Domain |
| LGB | Lesbian |
| PAA | Position Area For Artillery |
| EDT | Eastern Daylight Saving Time (UTC-4 Hours) |
| OB | Obiit (Latin |
| OCFS | Oracle Cluster File System |