sheep frog vs toad

sheep frog and toad both are nouns.

Word	Noun	Adjective	Verb	Adverb
sheep frog	Yes	No	No	No
toad	Yes	No	No	No

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

sheep frog: mostly of Central America
toad: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of sheep frog include anuran, batrachian, frog, salientian, toad frog.

sheep frog (noun)	toad (noun)
mostly of Central America	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species