mezcal vs cactus

mezcal and cactus both are nouns.

Word	Noun	Adjective	Verb	Adverb
mezcal	Yes	No	No	No
cactus	Yes	No	No	No

As nouns, cactus is a hypernym of mezcal; that is, cactus is a word with a broader meaning than mezcal:

mezcal: a small spineless globe-shaped cactus; source of mescal buttons
cactus: any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines

mezcal (noun)	cactus (noun)
a small spineless globe-shaped cactus; source of mescal buttons	any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines