| Acronym | Meaning |
| GA | Gabon (ISO 3166 Digram) - The Gambia (FIPS 10-4 Country Code) - Georgia (postal Symbol) - Gigaampere |
| BIDST | British Institute Of Dental And Surgical Technologists |
| PCP | Phencyclidine - Pneumocystis Jiroveci Pneumonia (formerly Peumocystis Carinii) -Probabilistically Checkable Proof |
| RE | Rhenium |
| XXX | Hardcore Pornography (film Rating) - Thirty (in Roman Numerals) |
| USNI | United States Naval Institute |
| GEBCO | General Bathymetric Chart Of The Oceans |
| COLA | Comp.os.linux.announce - Cost Of Living Adjustment |
| MDM | Michigan Dartmouth MIT Telescope Consortium |
| DLSC | U.S. Defense Logistics Services Center - U.S. Defense Logistics Support Command - Department Of Library Special Collections (Western Kentucky University Libraries) - Direct Loan Servicing Center - Directorate Of Land Strategic Concepts (Canada) - Dominica |