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.
Heading down to Honolulu, the road opens to views of the city and the Pacific, coupled with the misty cliffs, rainforests, and ocean views. Staff Report, Hartford Courant, 30 Mar. 2025 While central New South Wales is now characterized by plains and plateaus, during the Miocene, the region was surrounded by lush rainforests, according to the study. Julianna Bragg, CNN Money, 28 Mar. 2025 Read Next World ‘Honking’ creature with ‘long’ tongue found lurking in rainforest. Aspen Pflughoeft, Miami Herald, 27 Mar. 2025 Like Maui and Sicily before it, season three has showcased its site’s most dazzling landscapes—including its tropical beaches, lush rainforests, and towering limestone cliffs. Regan Stephens, Vogue, 23 Mar. 2025 Lihue, Kaua‘i Kaua‘i is known for its glimmering rainforests and turquoise waves, so plan ahead to hike a section of the NaPali Coast, a tough trail with views of emerald peaks plummeting into the ocean. Amanda Eyre Ward, Bon Appétit, 19 Mar. 2025 Also, keep an ear out for bugles from the herd of elk that live in the rainforest. Graham Averill, Outside Online, 4 Mar. 2025 Her travel writing has taken her to rainforests, remote tropical islands, and the red carpets of Cannes. Felicity Carter, Forbes, 19 Mar. 2025 Nearly 90 percent of this Colorado-size country, wedged between Cameroon, Equatorial Guinea, and the Republic of the Congo on the continent’s Atlantic coast, is cloaked in rainforest. Chris Schalkx, Travel + Leisure, 16 Mar. 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 3 Apr. 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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