English abbreviations from hwg to hys
- 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 (IATA code of Hong Kong Airlines|| Medical history|| Hydrogen halide|| Concept automobile by HUMMER)
- HXB (The glycoprotein Tenascian C)
- HXD ((instrumentation) Hard X-ray Detector, an instrument on the Suzaku space telescope)
- HXX (Hay Airport)
- hy (Armenian language (ISO 639-1 code))
- HYA (Barnstable Municipal Airport (Boardman/Polando Field))
- HYC (RAF High Wycombe)
- HYD (Rajiv Gandhi International Airport (succeeded Begumpet Airport))
- HYDIM (hydraulic interface module)
- hye (Armenian language (ISO 639-2 code))
- HYF (Hayfields Airport)
- HYG (Hydaburg Seaplane Base)
- HYL (Hollis Seaplane Base)
- HYN (Taizhou Luqiao Airport)
- HYPAK (Hydraulic Power Assist Kit)
- HYPJ (Hyperjet)
- HYR (Sawyer County Airport)
- HYROP (Hydrophone Log)
- HYS (Harvard, Yale, Stanford (perennially named as the top three law schools in the U.S.))
