| Acronym | Meaning |
| DND | Department Of National Defence (Canada) - Do Not Disturb |
| SSA | Cargo Submarine (US Navy Hull Classification) |
| STDM | Statistical Time Division Multiplexing |
| DHHS | (U.S.) Department Of Health And Human Services |
| 3G | Third |
| AOI | Angle Of IncidenceArab Organization For Industrialization |
| MASER | Microwave Amplification By Stimulated Emission Of Radiation |
| EIAH | Encyclopedia Of Iranian Architectural History |
| TM | Terametre - Thulium |
| ABCA | American Border Collie Association - American |