Phalanger is a term used to refer to a type of marsupial animal found in the tropical forests of Australia and Papua New Guinea. It is also commonly called the possum or tree kangaroo due to its similar appearance to these animals. However, there are several other synonyms for the word phalanger that are used in different regions of the world. In New Guinea, it is known as cuscus, while in other parts of Australia, it is called the glider or sugar glider. These synonyms are based on the animal's behavior or physical characteristics, such as its ability to glide or its fondness for sugary foods.