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grey water

British  

noun

  1. household waste water that can be reused for some purposes without purification, e.g. bath water, which can be used to water plants Compare black water

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Mr Johnstone suggests using a water butt to collect any rain water, as well as using "grey water" from baths and cooking pots.

From BBC Jun. 16, 2023

With the neighborhood’s primary drinking water well shut off, they’re getting more incentive to conserve: taking one-minute showers, flushing the toilet less and recycling grey water from their laundry.

From Seattle Times May 8, 2023

The Beardy Gardener - as he is known on social media - advised people to also collect water from baths, washing up and cooking, known as grey water.

From BBC Aug. 3, 2022

Granted, the technology exists to treat grey water so it can be stored for longer periods and used for surface watering, among other things.

From Los Angeles Times May 4, 2022

He was cramped and miserable, having nothing to do but stare at the winter-lands crawling by and the grey water on either side of him.

From "The Fellowship of the Ring" by J.R.R. Tolkien

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