Rank | Abbreviation | Meaning |
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***** | HDDA | Highland Downtown Development Authority
| |
**** | HDDA | Hierarchical Dynamic Distributed Array
| |
**** | HDDA | Hexanediol Diacrylate
| |
**** | HDDA | Hartsville Downtown Development Association
| |
**** | HDDA | Hiiraan Diaspora Development Alliance
| |
*** | HDDA | Heavy Duty Distribution Association
| |
*** | HDDA | Horrex Davis Design Associates
| |
*** | HDDA | Horrex Davis Design Associates Ltd.
| |
*** | HDDA | High Definition Digital Audio
| |
** | HDDA | Humane and Dignified Death Act
| |
** | HDDA | Hickory Downtown Development Association
| |
* | HDDA | High Dimensional Discriminant Analysis
| |