paragon vs humdinger

paragon and humdinger both are nouns.

Word	Noun	Adjective	Verb	Adverb
paragon	Yes	No	No	No
humdinger	Yes	No	No	No

As nouns, humdinger is a hyponym of paragon; that is, humdinger is a word with a more specific, narrower meaning than paragon:

Other hyponyms of paragon include crackerjack, jimdandy, jimhickey, class act.

paragon (noun)	humdinger (noun)
an ideal instance; a perfect embodiment of a concept	someone of remarkable excellence
model of excellence or perfection of a kind; one having no equal