rainforest

noun

rain·​for·​est ˈrān-ˌfȯr-əst How to pronounce rainforest (audio)
-ˌfär-
variants or less commonly rain forest
plural rainforests also rain forests
1
: a tropical woodland with an annual rainfall of at least 100 inches (254 centimeters) and marked by lofty broad-leaved evergreen trees forming a continuous canopy

called also tropical rainforest

2

Examples of rainforest in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Hills and their team, which is overwhelmingly composed of local residents, reimagined the former Coconut Grove Lodge into the area's first luxury retreat, with overwater suites, a private beach backed by lush rainforest, and farm-to-table dining. Lydia Price, Travel + Leisure, 1 Feb. 2026 Volcano sits at nearly 4,000 feet, right on the edge of its namesake national park, tucked into a high-altitude rainforest that looks more like the Pacific Northwest than the tropical postcards of Waikiki. Tommy Orange, Condé Nast Traveler, 31 Jan. 2026 That could be a spaceship flying over an alien planet, a blimp over a European city set in the 1950s drawing from a photo, or an tapir running through far reaches of the Amazon rainforest. Abhimanyu Ghoshal, New Atlas, 30 Jan. 2026 Below the 40th parallel in the Southern Ocean, there are sixty-knot winds and tempestuous seas, rainforests, mountains, white sand beaches and an ever-changing sky. Literary Hub, 28 Jan. 2026 Cremer was last seen in the mining town of Waratah, which borders the Tarkine rainforest, on June 17, 2023. Escher Walcott, PEOPLE, 28 Jan. 2026 Swim through bioluminescent seas, sleep in deserts with poets, wake in rainforest dawns with conservationists, and travel north into polar silence. Daniel Scheffler, Forbes.com, 24 Jan. 2026 Spathiphyllum, or peace lily, is an evergreen tropical plant found on the forest floor of rainforests. Tim Johnson, Chicago Tribune, 24 Jan. 2026 Maduro decreed that 12% of Venezuela’s land—much of it Amazon rainforest—would be opened to mining. Helena Carpio, Time, 16 Jan. 2026

Word History

First Known Use

1900, in the meaning defined at sense 1

Time Traveler
The first known use of rainforest was in 1900

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Cite this Entry

“Rainforest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainforest. Accessed 2 Feb. 2026.

Kids Definition

rain forest

noun
1
: an often tropical woodland with a high annual rainfall and very tall evergreen trees with tops forming a continuous layer

called also tropical rain forest

2

More from Merriam-Webster on rainforest

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