: the volume (as of irrigation water) that would cover one acre to a depth of one foot

Examples of acre-foot in a Sentence

Recent Examples on the Web
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The Wild Horse Reservoir project would create a 95,000-acre-foot storage system designed to help meet demand through 2075, capturing water from both the Colorado River Basin and Arkansas River Basin, according to project plans from the City of Aurora Water Department. Spencer Wilson, CBS News, 2 May 2026 By collecting the data, the agency is preparing to charge landowners fees — $300 for each well plus a usage fee of $20 for each acre-foot of water. Ian James, Los Angeles Times, 1 May 2026 The new body of water, to be named the Wild Horse Reservoir, would become the city’s largest at a capacity of 95,000 acre-feet. Elise Schmelzer, Denver Post, 1 May 2026 According to the state Water Resources Department, reservoirs across California were holding approximately 33 million acre-feet of water as of Tuesday, April 21. Sacbee.com, 23 Apr. 2026 See All Example Sentences for acre-foot

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of acre-foot was in 1889

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Cite this Entry

“Acre-foot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acre-foot. Accessed 6 May. 2026.

Kids Definition

acre-foot

noun
: the volume (as of irrigation water) that would cover one acre to a depth of one foot

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