The plural of forest is forests.
A forest is a large area covered with trees, plants, and various forms of vegetation. Forests are vital ecosystems that support a wide range of plant and animal species, provide oxygen, store carbon, regulate the climate, and offer numerous resources. They are important for biodiversity, soil conservation, water cycle regulation, and recreational activities. Forests can be found in different parts of the world, ranging from dense tropical rainforests to coniferous forests in colder regions. They play a crucial role in maintaining the balance of nature and are often considered as the lungs of the Earth.