| Acronym | Definition |
|---|
| HW | Hardware |
| HW | Homework |
| HW | Hollywood |
| HW | Highway |
| HW | Hot Water |
| HW | Hazardous Waste |
| HW | Heavy Weight (sports) |
| HW | Hardwood |
| HW | Healthy Weight |
| HW | Health and Wealth |
| HW | Head of Wall (construction) |
| HW | Hyrule Warriors (video game) |
| HW | Happy Wheels (game) |
| HW | Handwriting |
| HW | Halo Wars (game) |
| HW | Harry Winston (jeweler) |
| HW | High Water |
| HW | Homeworld (game) |
| HW | Hot Wheel |
| HW | Harvard-Westlake School (California) |
| HW | Hot Wire (welding technology) |
| HW | Heartworm |
| HW | Hard Wired |
| HW | Health Warning |
| HW | Hard Water |
| HW | Headwind |
| HW | Hawkwind (band) |
| HW | Helloween (band) |
| HW | Half-Wave |
| HW | Heavy Water |
| HW | Herewith |
| HW | Hayley Westenra (classical soprano from New Zealand) |
| HW | Homewrecker |
| HW | Hundredweight |
| HW | Hand Wheel (automotive steering systems) |
| HW | Hatchway |
| HW | Holy Wood (Marilyn Manson album) |
| HW | Half-Word |
| HW | Health Week (PBS show) |
| HW | Heater, Water |
| HW | Harvey Wallbanger (cocktail) |
| HW | Hall-Way |
| HW | Hand Weeding |
| HW | Highly Weathered (soil mechanics) |
| HW | Heritage Writtle (UK) |
| HW | Hollow World (gaming, Dungeons & Dragons) |
| HW | High-Warning |
| HW | Hanford Works |
| HW | Hell's Wrath (gaming clan) |
| HW | Hacked Website |
| HW | HutchWorld (mobile networking) |
| HW | Homing Weapons |
| HW | Horizontal Weather Depiction |