Tayassu tajacu vs peccary

Tayassu tajacu and peccary both are nouns.

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

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

Tayassu tajacu: dark grey peccary with an indistinct white collar; of semi desert areas of Mexico and southwestern United States
peccary: nocturnal gregarious pig-like wild animals of North America and South America

Other hypernyms of Tayassu tajacu include musk hog.

Tayassu tajacu (noun)	peccary (noun)
dark grey peccary with an indistinct white collar; of semi desert areas of Mexico and southwestern United States	nocturnal gregarious pig-like wild animals of North America and South America