English abbreviations from hw to hx
- HW (Heavyweight)
- HW/SW (Hardware/Software)
- HWA (Hawabango Airport)
- HWAAP (Hawthorne Army Ammunition Plant)
- HWAG (HACCP Working Aspects Group)
- HWB (Herbert Wilson Broadcasting)
- HWC (Holocaust Warning Center)
- HWCI (Hardware Configuration Item)
- HWD (Hayward Executive Airport)
- HWDP (Heavy-Weight Drill Pipe (sometimes spelled Hevi-Wate))
- HWF (Hardcore Wrestling Federation)
- HWG (Harmonization Working Group)
- HWGC (Hole In The Wall Gang Camp)
- HWGF (Hole In The Wall Gang Fund)
- HWHM (Half Width at Half Maximum)
- HWI (Hawk Inlet Seaplane Base)
- HWIL (Hardware- In-the- Loop)
- HWK (Wilpena Pound)
- HWM (Hardware morphing (computer graphics rendering))
- HWN (Hwange National Park Airport)
- HWO (North Perry Airport)
- HWP (Hazardous Waste Program)
- HWS (Holographic Weapon Sight)
- HWSTD (High Water Speed Technology Demonstrator)
- HWU (HardWare Unit)
- Hx (History)