hoi polloi vs people

hoi polloi and people both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoi polloi	Yes	No	No	No
people	Yes	No	Yes	No

As nouns, hoi polloi and people are synonyms defined as:

Other synonyms of hoi polloi include mass, masses, multitude, the great unwashed.

hoi polloi (noun)	people (noun)
the common people generally	(plural) any group of human beings (men or women or children) collectively
	the body of citizens of a state or country
	members of a family line
	the common people generally

hoi polloi (verb)	people (verb)
	fill with people
	furnish with people