unionisation vs constitution

unionisation and constitution both are nouns.

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

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

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

unionisation (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