unionization vs constitution

unionization and constitution both are nouns.

Word	Noun	Adjective	Verb	Adverb
unionization	Yes	No	No	No
constitution	Yes	No	No	No

As nouns, constitution is a hypernym of unionization; that is, constitution is a word with a broader meaning than unionization:

Other hypernyms of unionization include establishment, formation, organisation, organization.

unionization (noun)	constitution (noun)
act of forming labor unions	the act of forming or establishing something
	the way in which someone or something is composed
	law determining the fundamental political principles of a government