DH explained

DH, Dh, dh, or dH may refer to:

Places

DH postcode area, in the United Kingdom for the area of Durham and surrounding towns
Diamond Head, Hawaii, a volcanic tuff cone on Oʻahu
Dadra and Nagar Haveli and Daman and Diu, a union territory of India (ISO 3166-2)

Denavit–Hartenberg parameters, a type of robotics convention
Dermatitis herpetiformis, a skin disease
DH register, the high byte of a DX register in x86-compatible microprocessors
Diffie-Hellman key exchange (D-H), a specific method of securely exchanging cryptographic keys over a public channel
District heating, a method of heating multiple buildings from a central location
Doubled haploidy, a genetic status
Deuterium:protium (D:H), a ratio in deuterium-depleted water
°dH, deutsche Härte, a unit of water hardness
Dorsal horn of the spinal cord, or posterior grey column

de Havilland, a former UK aircraft manufacturer
Decision height, in aviation
- Delaware and Hudson Railway Independence Air (IATA code)

Dh (digraph), in linguistics
Dear husband, a shorthand phrase common in online forums
Donor husband
Digital humanities, a community of practice combining technology with humanistic inquiry
Documentary hypothesis or Wellhausen hypothesis, describing the origins of Judeo-Christian scripture
Desperate Housewives, television series
Domestic Helper
Informal abbreviation for Harry Potter and the Deathly Hallows