tree wallaby vs tree kangaroo

tree wallaby and tree kangaroo both are nouns.

Word	Noun	Adjective	Verb	Adverb
tree wallaby	Yes	No	No	No
tree kangaroo	Yes	No	No	No

As nouns, tree wallaby and tree kangaroo are synonyms defined as:

tree wallaby and tree kangaroo: arboreal wallabies of New Guinea and northern Australia having hind and forelegs of similar length

tree wallaby (noun)	tree kangaroo (noun)
arboreal wallabies of New Guinea and northern Australia having hind and forelegs of similar length	arboreal wallabies of New Guinea and northern Australia having hind and forelegs of similar length