| Acronym | Meaning |
| PSA | Paralysis Society Of America - Pharmaceutical Society Of Australia - Pressure-Sensitive Adhesive - Production Services Association - Prostate Specific Antigen - Public Service Announcement - Public Service Association |
| APL | A Programming Language - Acute Promyeloid Leukaemia - Anti-Personnel Landmine - Applied Physics Laboratory (Johns Hopkins University) |
| GP | General Practitioner - General Purpose - Grand Prix -Guadeloupe (ISO 3166 Digram; FIPS 10-4 Territory Code) |
| ARB | Administrative Review Board |
| MIS | Management Information Systems - Museum Information System |
| FAS | Federation Of American Scientists - Fetal Alcohol Syndrome |
| NLW | Non-Lethal Weapon |
| MSLP | Mean Sea Level Pressure |
| FK | Femtokelvin |
| GOMER | Get Out Of My Emergency Room (derogatory Reference To Hypochondriac Patients) |