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Synonyms

rainstorm

American  
[reyn-stawrm] / ˈreɪnˌstɔrm /

noun

  • rainstorms
    plural
  1. a storm with heavy rain.


rainstorm British  
/ ˈreɪnˌstɔːm /

noun

  1. a storm with heavy rain

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of rainstorm

First recorded in 1810–20; rain + storm

Explanation

When clouds roll in and drops of water start to pour from the sky, it's a rainstorm. If the weather report predicts a rainstorm, you'd better grab your umbrella! You could also call a rainstorm a downpour or a cloudburst — it's a weather event involving heavier rain than a rain shower or drizzle. Certain unstable air conditions sometimes cause a rainstorm to turn into a thunderstorm. A farmer in the midst of a dry, hot summer is likely hoping for a rainstorm, but if you're excited about an outdoor family reunion next weekend, a rainstorm in the forecast will be very disappointing.

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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:

She recalled leaving Wagoner's office after their musical split and driving home in a rainstorm, until the clouds parted, giving way to sunlight and an idea for another new song.

From BBC Aug. 25, 2026

One solution is to visit a house you’re thinking of buying in the middle of a rainstorm, when water-related problems can become more obvious, Marecheau said.

From MarketWatch Aug. 15, 2026

It doesn’t help that a rainstorm of biblical proportions is befalling Chicago.

From The Wall Street Journal Jun. 25, 2026

Its unlikely that the weekend’s rainstorm is a direct product of the El Niño cycle, which forecasters predict will emerge sometime in May through July, said Schoenfeld.

From Los Angeles Times Apr. 10, 2026

The rainstorm in the enclosure had been strange enough, but another shower in August?

From "Endangered" by Eliot Schrefer

The findings extend beyond heavy rainstorms and could have implications for underground operations around the world.

From Science Daily Jul. 6, 2026

Earnings during the most recent quarter were also impacted by cartel violence in Mexico and historic rainstorms in Hawaii, with the two markets together representing around 30% of the company’s capacity, it said.

From The Wall Street Journal Apr. 20, 2026

Last year, 80 percent of Bogus Basin’s pile survived torrential rainstorms and stretches of record summer heat.

From Slate Apr. 11, 2026

Bolding’s joyful daisies decorated the Sidecca tote bag given to customers at November’s reopening, just before December’s intense rainstorms.

From Los Angeles Times Mar. 3, 2026

In San Antonio, rainstorms were rare, and if one hit at night, you woke up with water dripping on your face.

From "Out of Darkness" by Ashley Hope Pérez

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