Rainforest (noun)

1. A dense, tropical forest that is characterized by high annual rainfall, high humidity, and a diverse array of plants and animals.
2. A forest that receives a high amount of rainfall.

Origin:

The word "rainforest" is derived from two words "rain" and "forest" which means "a forest that receives a high amount of rainfall". it is a dense, tropical forest that is characterized by high annual rainfall, high humidity, and a diverse array of plants and animals.

Examples:

1. The Amazon rainforest is the largest rainforest in the world.
2. The rainforest is home to many unique species of plants and animals.
3. The destruction of the rainforest is harming the planet's biodiversity.
4. The rainforest is an important source of medicine and other resources.
5. The rainforest is being destroyed at an alarming rate for commercial gain.