Word.ws English Dictionary

domestic hot water

domestic hot water noun: water used, in any type of building, for domestic purposes, principally drinking, food preparation, sanitation, personal hygiene, and heating (but not including swimming pool heating, or processes such as commercial food preparation or clothes washing).

Noun

domestic hot water (uncountable)

  1. Water used, in any type of building, for domestic purposes, principally drinking, food preparation, sanitation, personal hygiene, and heating (but not including swimming pool heating, or processes such as commercial food preparation or clothes washing).
    • Heating, ventilation, domestic hot water and lighting use significant amounts of energy.1996, Geraint John, Kit Campbell, Handbook of Sports and Recreational Building Design Volume 3: Ice Rinks and Swimming Pools
    • Warm or tepid water systems that dilute domestic hot water from a water heater with cold water upstream from the outlet source are not recommended.2003, Roger F Jones, Martha J Boss, Dennis W Day, Biological Risk Engineering Handbook
    Synonyms:
    DHW

Synonyms of domestic hot water

Questions about domestic hot water

What does domestic hot water mean?
Domestic hot water means water used, in any type of building, for domestic purposes, principally drinking, food preparation, sanitation, personal hygiene, and heating (but not including swimming pool heating, or processes such as commercial food preparation or clothes washing).
What part of speech is domestic hot water?
Domestic hot water is a noun.

Words near domestic hot water in the dictionary

  1. domestic goddess
  2. domestic goddesses
  3. domestic guinea pig
  4. domestic guinea pigs
  5. domestic helper
  6. domestic hot water
  7. domestic inquiries
  8. domestic inquiry
  9. domestic partner
  10. domestic partners
  11. domestic partnership

Source and license

Adapted from Wiktionary: domestic hot water (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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