rainwater
noun
water fallen as rain.
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rainwater
1 American
[reyn-waw-ter, -wot-er]
/ ˈreɪnˌwɔ tər, -ˌwɒt ər /
noun
Rainwater
2
American
[reyn-waw-ter, -wot-er]
/ ˈreɪnˌwɔ tər, -ˌwɒt ər /
noun
rainwater
British
/ ˈreɪnˌwɔːtə /
noun
Etymology
Origin of rainwater
before 1000; Middle English rein water, Old English regn-wæter; see rain, water
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.
See Examples For:
Among those technologies is direct air capture—in which carbon is absorbed from the atmosphere, enhanced rock weathering where rocks like basalt are spread over farm fields to capture dissolved carbon in rainwater.
From The Wall Street Journal ● Jun. 17, 2026
Liou and her gardener helped Lee install it and build a bioswale to catch rainwater, using stones from Valley Builders Supply and some larger rocks from Bourget Bros.
From Los Angeles Times ● Jun. 10, 2026
As concern over health impacts grew in communities, the military spent about AU$1.3 billion treating 13 billion litres of water and supplying alternative sources to 785 properties, including bottled drinking water and rainwater tanks.
From Barron's ● May 28, 2026
With no rainwater to dilute the sewage it is particularly concentrated - this is an illegal practice.
From BBC ● Mar. 26, 2026
So far, we’d come across a black-capped chickadee in Pigeon Cove and a spotted salamander in a rainwater pond in the woods.
From "The Line Tender" by Kate Allen
The study was funded by the Rainwater Charitable Foundation/Tau Consortium, the National Institutes of Health and other sources.
From Science Daily ● Mar. 3, 2026
Joseph Shaposhnik, portfolio manager of the Rainwater Equity ETF, substantially reduced his exposure to software names over the summer, including selling most of his position in Constellation Software Inc.
From MarketWatch ● Feb. 4, 2026
Rainwater, ice and glacier meltwater accumulate in Suicide Basin.
From The Wall Street Journal ● Aug. 13, 2025
Stephanie Rainwater, an employee at Tenaya, a resort two miles from the park, said that at its worst, she has seen traffic stretch past the lodge, blocking employees from getting to work.
From Los Angeles Times ● Jun. 30, 2023
Rainwater poured over the brink in a miserable torrent.
From "Ship Breaker" by Paolo Bacigalupi
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
