Tayassu pecari vs peccary

Tayassu pecari and peccary both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tayassu pecari	Yes	No	No	No
peccary	Yes	No	No	No

As nouns, peccary is a hypernym of Tayassu pecari; that is, peccary is a word with a broader meaning than Tayassu pecari:

Tayassu pecari: blackish peccary with whitish cheeks; larger than the collared peccary
peccary: nocturnal gregarious pig-like wild animals of North America and South America

Other hypernyms of Tayassu pecari include musk hog.

Tayassu pecari (noun)	peccary (noun)
blackish peccary with whitish cheeks; larger than the collared peccary	nocturnal gregarious pig-like wild animals of North America and South America