peacock vs nymphalid

peacock and nymphalid both are nouns.

Word	Noun	Adjective	Verb	Adverb
peacock	Yes	No	No	No
nymphalid	Yes	No	No	No

As nouns, nymphalid is a hypernym of peacock; that is, nymphalid is a word with a broader meaning than peacock:

peacock: European butterfly having reddish-brown wings each marked with a purple eyespot
nymphalid: medium to large butterflies found worldwide typically having brightly colored wings and much-reduced nonfunctional forelegs carried folded on the breast

Other hypernyms of peacock include brush-footed butterfly, four-footed butterfly, nymphalid butterfly.

peacock (noun)	nymphalid (noun)
male peafowl; having a crested head and very large fanlike tail marked with iridescent eyes or spots	medium to large butterflies found worldwide typically having brightly colored wings and much-reduced nonfunctional forelegs carried folded on the breast
European butterfly having reddish-brown wings each marked with a purple eyespot