| Acronym | Definition |
|---|
| HHW➣Household Hazardous Waste (recycling and resource conservation) |
| HHW➣Heating Hot Water |
| HHW➣Haarlemse Honkbal Week (Netherlands) |
| HHW➣High High Water (same as HW springs) |
| HHW➣Hamilton High West |
| HHW➣HTML (Hypertext Markup Language) Help Workshop (Microsoft) |