| Acronym | Meaning |
| GMC | U.K. General Medical Council |
| PGD | Pre-implantation Genetic Diagnosis |
| DIY | Do It Yourself |
| ILC | International Law Commission - International Linear Collider |
| GJ | Gigajoule - Grenada (FIPS 10-4 Country Code) |
| BLZ | Belize (ISO 3166 Trigram) |
| GLBA | Gramm-Leach-Bliley Act |
| SLBM | Sea/Submarine-Launched Ballistic Missile |
| TLS | Timor-Leste (ISO 3166 Trigram) -Times Literary Supplement |
| GULCR | Grupo De Usuarios De Linux De Costa Rica |