manager vs administrator

manager and administrator both are nouns.

Word	Noun	Adjective	Verb	Adverb
manager	Yes	No	No	No
administrator	Yes	No	No	No

As nouns, administrator is a hypernym of manager; that is, administrator is a word with a broader meaning than manager:

Other hypernyms of manager include decision maker.

manager (noun)	administrator (noun)
someone who controls resources and expenditures	someone who administers a business
(sports) someone in charge of training an athlete or a team	the party appointed by a probate court to distribute the estate of someone who dies without a will or without naming an executor
	someone who manages a government agency or department