The term "Mountain devil" is often used to describe a variety of animal species, and it has different synonyms depending on the specific animal being referred to. Some synonyms for mountain devil include the Tasmanian devil, the North American mountain lion, and the Australian brush-tailed possum. The Tasmanian devil is a small, carnivorous marsupial native to Tasmania, while the North American mountain lion is a large cat that inhabits mountainous regions across the western United States. The Australian brush-tailed possum is a nocturnal marsupial that is commonly found in trees and is known for its loud and distinctive call. Depending on the context and location, there can be many more synonyms for the term "mountain devil".