warthog vs swine

warthog and swine both are nouns.

Word	Noun	Adjective	Verb	Adverb
warthog	Yes	No	No	No
swine	Yes	No	No	No

As nouns, swine is a hypernym of warthog; that is, swine is a word with a broader meaning than warthog:

warthog: African wild swine with warty protuberances on the face and large protruding tusks
swine: stout-bodied short-legged omnivorous animals

warthog (noun)	swine (noun)
African wild swine with warty protuberances on the face and large protruding tusks	stout-bodied short-legged omnivorous animals