Hellbender is a term that is often used to describe a type of large salamander found in North America. However, there are various words that can be used instead of hellbender to describe this unique creature. One synonym that can be used is the Allegheny alligator, which refers to its ability to grow up to two feet in length and its habitat in the Allegheny Mountains. Another synonym is the devil dog, which relates to the creature's appearance and its nocturnal habits. Additionally, some people refer to the hellbender as a snot otter, due to its slimy skin and tendency to live in rocky streams and rivers.