1) Opossum 2) Phalanger 3) Possum 
Cuscus (s) is the common name generally given to the species within the four genera of Australasian possum: The name is also applied in parts of Indonesia to the Sunda slow loris where people do not distinguish this from the `Kuskus` possums. ...
any of the seven species of Australasian marsupial mammals of the genus Phalanger. These are the marsupial `monkeys.` The head and body are 30 to 65 ...
Cus'cus noun [ The same word as Couscous , from French couscous couscous, Arabic kuskus .] (Botany) A soft grass ( Pennisetum typhoideum ) found in all tropical regions, used as food for men and cattle in Central Africa. 
Cuscus is a genus of animals of the phalanger family, somewhat resembling the opossums, having a dense woolly fur, prehensile tails, and living on leaves. They are natives of the smaller Australian islands.
[n] - woolly-haired monkey-like arboreal marsupial of New Guinea and North Australia
Couscous.
noun woolly-haired monkey-like arboreal marsupial of New Guinea and northern Australia