underground rainwater cistern

/ˌʌndərˈɡraʊnd ˈreɪnˌwɔːtər ˈsɪstərn/

noun

  1. A large, waterproof tank buried below the ground for collecting and storing rainwater, usually for later use in gardening, irrigation, toilets, or other household needs.

    B2

    countableformal

    • "The house has an underground rainwater cistern for watering the garden."B1
    • "An underground rainwater cistern can reduce the amount of mains water a building uses."B2
    • "The community installed an underground rainwater cistern to ensure a sustainable water supply during dry seasons."B2
    • "The architect designed an underground rainwater cistern to capture runoff from the roof and support the property's water-management system."C1

Collocations

install an underground rainwater cisternfill an underground rainwater cisternempty an underground rainwater cisterncollect rainwater in a cisternuse cistern water for irrigationrainwater collection system

Word family

cisternrainwaterunderground