rainforest

noun

rain·​for·​est ˈrān-ˌfȯr-əst 

-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

: temperate rainforest

Examples of rainforest in a Sentence

Recent Examples on the Web

The Sunda clouded leopard stalks the dense rainforests of Borneo and Sumatra in search of bearded pigs and mouse deer to prey on. — Douglas Main, Scientific American, 17 July 2026

Shot in 35mm black and white in the Amazon rainforest, the film required creating a timeless world where the spiritual and physical coexist. — Anna Marie De La Fuente, Variety, 16 July 2026

The whole family will stay in one of the resort’s 50 hacienda-style casitas, which include expansive patios with rainforest views. — Beth Luberecki, USA Today, 14 July 2026

Daddy longlegs, also called harvestmen, have been documented catching and consuming living frogs larger than themselves in South American rainforests. — Jay Kakade july 13, New Atlas, 14 July 2026

Word History

First Known Use

1900, in the meaning defined at sense 1

Phrases Containing rainforest

• temperate rainforest
• tropical rainforest

Rhymes for rainforest

• aorist
• deforest
• chorused
• forest
• sorest

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

: temperate rain forest