vulgarian vs pig

vulgarian and pig both are nouns.

Word	Noun	Adjective	Verb	Adverb
vulgarian	Yes	No	No	No
pig	Yes	No	Yes	No

As nouns, pig is a hyponym of vulgarian; that is, pig is a word with a more specific, narrower meaning than vulgarian:

vulgarian: a vulgar person (especially someone who makes a vulgar display of wealth)
pig: a coarse obnoxious person

Other hyponyms of vulgarian include ribald, slob, sloven, slovenly person.

vulgarian (noun)	pig (noun)
a vulgar person (especially someone who makes a vulgar display of wealth)	domestic swine
	a crude block of metal (lead or iron) poured from a smelting furnace
	mold consisting of a bed of sand in which pig iron is cast
	a person regarded as greedy and pig-like
	uncomplimentary terms for a policeman
	a coarse obnoxious person