wallaby vs brush kangaroo

wallaby and brush kangaroo both are nouns.

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

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

wallaby and brush kangaroo: any of various small or medium-sized kangaroos; often brightly colored

wallaby (noun)	brush kangaroo (noun)
any of various small or medium-sized kangaroos; often brightly colored	any of various small or medium-sized kangaroos; often brightly colored