true toad vs toad

true toad and toad both are nouns.

Word	Noun	Adjective	Verb	Adverb
true toad	Yes	No	No	No
toad	Yes	No	No	No

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

true toad: tailless amphibian similar to a frog but more terrestrial and having drier warty skin
toad: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

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

true toad (noun)	toad (noun)
tailless amphibian similar to a frog but more terrestrial and having drier warty skin	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species