The word orang-utan refers to the largest arboreal ape and is found in the Southeast Asian rainforests. However, there are several other words that can be used to describe this fascinating and intelligent creature. Some synonyms for orang-utan include red ape, person of the forest, forest man, and man of the woods. Additionally, the scientific name of the species is Pongo pygmaeus, which can also be used as a synonym. These alternative words offer a range of options for those who want to refer to this animal in a new and interesting way, or want to add some variety to their writing.