| Acronym | Meaning |
| RX | Receive |
| MCDL | Model Composition Definition Language |
| GIN | Guinea (ISO 3166 Trigram) -Guidelines International Network |
| CA | Calcium |
| AN | Andorra (FIPS 10-4 Country Code) - Netherland Antilles (ISO 3166 Digram) |
| PHA | PolyHydroxyAlkanoate -Potentially Hazardous Asteroid |
| ROFL(MAO) | Rolling On The Floor Laughing (My Ass Off) |
| GWAS | Grand Western Archery Society |
| HSV | Herpes Simplex Virus - Hue Saturation Value (colour Model) |
| ADHD | Attention-Deficit Hyperactivity Disorder |