tree-frog vs frog

tree-frog and frog both are nouns.

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

As nouns, frog is a hypernym of tree-frog; that is, frog 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
frog: 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, salientian, toad, toad frog.

As nouns, frog is a hypernym of tree-frog; that is, frog 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
frog: 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, salientian, toad, toad frog.

tree-frog (noun)	frog (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	a decorative loop of braid or cord
	a person of French descent

tree-frog (verb)	frog (verb)
	hunt frogs for food