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sewage

American  
[soo-ij] / ˈsu ɪdʒ /

noun

  1. the waste matter that passes through sewers.


sewage British  
/ ˈsuːɪdʒ /

noun

  1. waste matter from domestic or industrial establishments that is carried away in sewers or drains for dumping or conversion into a form that is not toxic

"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

Etymology

Origin of sewage

1825–35; sew(er) 1 (as if the ending was -er 1 ) + -age

Explanation

The waste water that flows down drains and through pipes from toilets and sinks is called sewage. There's nothing quite like smelling sewage on a hot summer day. Have you ever wondered where the soapy, dirty water from your washing machine goes after your clothes are clean? It flows down the drain into a pipe, and is carried with other sewage out to the street and your city's wastewater system, or into a private septic tank. Sewage comes from the now-obsolete verb sew, "to drain or draw off water."

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Vocabulary lists containing sewage

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Meanwhile, Severn Trent Water said it had been reducing storm overflow spills at Winchcombe Sewage Treatment Works.

From BBC • Jun. 10, 2026

"We can't show directly that that's happening, but we think it's a reasonable way that they could be winding up in the air. Sewage sludge fertilizers have been shown to release similar compounds."

From Science Daily • Apr. 11, 2026

Sewage is spilt when it is raining to prevent the system becoming overwhelmed and backing up into people's homes.

From BBC • Mar. 26, 2026

Sewage and debris flow from Tijuana are an ever-present threat and decades-long source of frustration and anger in Imperial Beach, where beaches have been closed and some residents have planted “Stop the Stink” yard signs.

From Los Angeles Times • Feb. 14, 2026

Sewage and drainpipes fed directly on to the muddy surface.

From "Artemis Fowl" by Eoin Colfer

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