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Meanings and definitions for HHD
What does HHD stand for? What does HHD mean?
- Astro Hua Hee Dai, a Malaysian television channel
- ATP2C1, a human enzyme
- Headquarters and Headquarters Detachment in the United States Army
- Hiatus Hernia Diafragmatica, a medical condition
- High Holy Days (band), a Canadian rock band
- Hogshead (abbreviation: hhd), a barrel of liquid
- Holyhead railway station, in Wales
- Home hemodialysis, for treating kidney failure
- Hybrid drive, a type hard disk drive
- Helena Historic District (Helena, Alabama), listed on the National Register of Historic Places in Shelby County, Alabama
- Helena Historic District (Helena, California), listed on the National Register of Historic Places in Trinity County, California
- Helena Historic District (Helena, Montana), listed on the National Register of Historic Places in Lewis and Clark County, Montana
- Helena Railroad Depot Historic District, Helena, Montana, listed on the National Register of Historic Places in Lewis and Clark County, Montana
- Helena West Main Street Historic District, Helena, Montana, listed on the National Register of Historic Places in Lewis and Clark County, Montana
- Mount Helena Historic District, Helena, Montana, listed on the National Register of Historic Places in Lewis and Clark County, Montana
- St. Helena Historic Commercial District, St. Helena, California, listed on the National Register of Historic Places in Napa County, California
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