executive vs administration

executive and administration both are nouns.

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

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

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

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

executive (noun)	administration (noun)
persons who administer the law	a method of tending to or managing the affairs of some group of people (especially the group's business affairs)
a person responsible for the administration of a business	the act of administering medication
someone who manages a government agency or department	the act of meting out justice according to the law
	the act of governing; exercising authority
	the persons (or committees or departments etc.) who make up a body for the purpose of administering something
	the tenure of a president

executive (adjective)	administration (adjective)
having the function of carrying out plans or orders etc.