unionization vs organization

unionization and organization both are nouns.

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

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

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

unionization (noun)	organization (noun)
act of forming labor unions	the act of organizing a business or an activity related to a business
	the activity or result of distributing or disposing persons or things properly or methodically
	the act of forming or establishing something
	an ordered manner; orderliness by virtue of being methodical and well organized
	an organized structure for arranging or classifying
	a group of people who work together
	the persons (or committees or departments etc.) who make up a body for the purpose of administering something