| Acronym | Meaning |
| GU | Guam (postal Symbol; ISO 3166 Digram) |
| PEBKAC | Problem Exists Between Keyboard And Chair (ditto) |
| CCOP | Coalition Common Operating/Operational Picture |
| NIAID | National Institute Of Allergies And Infectious Disease |
| XH | Xhosa Language (ISO 639-1 Code) |
| GHA | Ghana (ISO 3166 Trigram) |
| TSSIA | The Subject Says It All |
| GOYADIN | Get Off Your Arse |
| RWF | Rwandan Franc (ISO 4217 Currency Code) |
| UPC | Universal Product Code |