| Acronym | Definition |
|---|
| HSDW➣Homeland Security Daily Wire (Washington, DC) |
| HSDW➣Hobbs, Straus, Dean & Walker LLP (various locations) |
| HSDW➣Hanford Site Defense Waste |
| HSDW➣Helical Spin Density Wave |
| HSDW➣High Strength Dairy Waste (environment; Ben & Jerry's Ice Cream) |