| Acronym | Meaning |
| KIK | Gikuyu Language (ISO 639-2 Code) |
| GDC | General Dental Council |
| CWRU | Case Western Reserve University |
| ASIC | Aviation Security Identification Card |
| HDL | High-Density Lipoprotein |
| BR | Brazil (ISO 3166 Digram; FIPS 10-4 Country Code) -British Rail- Break Ranks (marching Band Term) |
| USJFCOM | United States Joint Forces Command |
| ILC | International Law Commission - International Linear Collider |
| FSO | Fire Support Officer - Flotilla Staff Officer - Foreign Service Officer |
| PSO | Peace Support Operations - Primary Standardisation Office (ABCA) - Protocol Supporting Organization (of The ICANN) |