organized labor vs proletariat

organized labor and proletariat both are nouns.

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

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

organized labor: employees who are represented by a labor union
proletariat: a social class comprising those who do manual labor or work for wages

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

organized labor (noun)	proletariat (noun)
employees who are represented by a labor union	a social class comprising those who do manual labor or work for wages