mankind vs people

mankind and people both are nouns.

Word	Noun	Adjective	Verb	Adverb
mankind	Yes	No	No	No
people	Yes	No	Yes	No

mankind (noun)	people (noun)
all of the living human inhabitants of the earth	(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

mankind (verb)	people (verb)
	fill with people
	furnish with people