tree-frog vs toad

tree-frog and toad both are nouns.

Word	Noun	Adjective	Verb	Adverb
tree-frog	Yes	No	No	No
toad	Yes	No	No	No

As nouns, toad is a hypernym of tree-frog; that is, toad is a word with a broader meaning than tree-frog:

tree-frog: any of various Old World arboreal frogs distinguished from true frogs by adhesive suckers on the toes
toad: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of tree-frog include anuran, batrachian, frog, salientian, toad frog.

As nouns, toad is a hypernym of tree-frog; that is, toad is a word with a broader meaning than tree-frog:

tree-frog: arboreal amphibians usually having adhesive disks at the tip of each toe; of southeast Asia and Australia and America
toad: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of tree-frog include anuran, batrachian, frog, salientian, toad frog.

tree-frog (noun)	toad (noun)
any of various Old World arboreal frogs distinguished from true frogs by adhesive suckers on the toes	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species
arboreal amphibians usually having adhesive disks at the tip of each toe; of southeast Asia and Australia and America