labor force vs proletariat

labor force and proletariat both are nouns.

Word	Noun	Adjective	Verb	Adverb
labor force	Yes	No	No	No
proletariat	Yes	No	No	No

As nouns, proletariat is a hypernym of labor force; that is, proletariat is a word with a broader meaning than labor force:

labor force: the source of trained people from which workers can be hired
proletariat: a social class comprising those who do manual labor or work for wages

Other hypernyms of labor force include labor, labour, working class.

labor force (noun)	proletariat (noun)
the source of trained people from which workers can be hired	a social class comprising those who do manual labor or work for wages