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 Sol Duc Hot Springs Resort is located two miles west of the Sol Duc Falls Trailhead, a short hike through old-growth rainforest that leads to a picturesque three-pronged waterfall. Evie Carrick, Travel + Leisure, 24 Oct. 2025 He was thrown from the helicopter into a rainforest, became amnesiac, and was nursed back to health by some kindly locals? Sophie Brookover, Vulture, 24 Oct. 2025 The event will focus on amplifying the voices of indigenous peoples and local communities in the Amazon rainforest and aim to raise $1 billion to protect, restore and rewild the Amazon rainforest. Katie Atkinson, Billboard, 23 Oct. 2025 This meant drastic alterations in the ecology of the land by clearing the dense rainforest and burning trees for the planting of sugar. Literary Hub, 23 Oct. 2025 After days spent exploring coral reefs and rainforests, Mango House offered a gentler kind of immersion — into stillness. Shelby Stewart, Essence, 22 Oct. 2025 Still, few things feel quite as exotic as trekking through the remote Amazonian rainforest, even with the mosquitoes. Jeri Clausing, AFAR Media, 21 Oct. 2025 Today’s sloths – commonly featured on children’s backpacks, stationery and lunch boxes – are slow-moving creatures, living inconspicuously in Central American and South American rainforests. Aditya Reddy Kurre, The Conversation, 21 Oct. 2025 Now, at least one region’s rainforests have reached a tipping point. Lauren Liebhaber, Miami Herald, 20 Oct. 2025

Word History

First Known Use

1900, in the meaning defined at sense 1

Time Traveler
The first known use of rainforest was in 1900

Browse Nearby Words

Cite this Entry

“Rainforest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainforest. Accessed 31 Oct. 2025.

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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