organisation vs administration

organisation and administration both are nouns.

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

As nouns, administration is a hypernym of organisation; that is, administration is a word with a broader meaning than organisation:

organisation: the act of organizing a business or an activity related to a business
administration: a method of tending to or managing the affairs of some group of people (especially the group's business affairs)

Other hypernyms of organisation include disposal.

As nouns, organisation and administration are synonyms defined as:

organisation and administration: the persons (or committees or departments etc.) who make up a body for the purpose of administering something

Other synonyms of organisation include brass, establishment, governance, governing body, organization.

organisation (noun)	administration (noun)
the act of organizing a business or an activity related to a business	a method of tending to or managing the affairs of some group of people (especially the group's business affairs)
the activity or result of distributing or disposing persons or things properly or methodically	the act of administering medication
the act of forming or establishing something	the act of meting out justice according to the law
an ordered manner; orderliness by virtue of being methodical and well organized	the act of governing; exercising authority
an organized structure for arranging or classifying	the persons (or committees or departments etc.) who make up a body for the purpose of administering something
a group of people who work together	the tenure of a president
the persons (or committees or departments etc.) who make up a body for the purpose of administering something