| Acronym | Meaning |
| DCOP | Desktop Communication Protocol |
| MWC | Maritime Warfare Centre (various Nations) |
| CHI | Computer-Human Interaction |
| IHH | Idiopathic Hypogonadotropic Hypogonadism |
| HTA | HyperText Application |
| RARDE | UK Royal Armament Research And Development Establishment (1962?1991) |
| GWAS | Grand Western Archery Society |
| UCBSA | United Cricket Board Of South Africa |
| ZHA | Zhuang Language (ISO 639-2 Code) |
| CLOS | Command To Line-Of-Sight (missile Control System) |