What is another word for rainforest?

There isn't one single perfect synonym for "rainforest," as the term is quite specific. However, depending on the context, you could use some of these:

General terms:

* Jungle: This is a common synonym, though it's not always accurate, as jungles can be other types of dense forests.

* Tropical forest: This is a more scientifically accurate term.

* Rain-soaked forest: This emphasizes the high rainfall.

More specific terms:

* Tropical evergreen forest: This describes the type of vegetation.

* Tropical moist forest: This highlights the humidity.

* Selva: This is the Spanish word for rainforest, often used in South America.

Literary terms:

* Green hell: This is a dramatic, but somewhat outdated term.

* Emerald canopy: This is a poetic way to describe the rainforest's dense foliage.

Ultimately, the best synonym depends on what aspect of the rainforest you want to emphasize.