authorities vs organisation

authorities and organisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
authorities	Yes	No	No	No
organisation	Yes	No	No	No

authorities (noun)	organisation (noun)
the organization that is the governing authority of a political unit	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