DCI vs administrator

DCI and administrator both are nouns.

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

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

DCI: the head of the United States Intelligence Community and director of the Central Intelligence Agency
administrator: someone who manages a government agency or department

Other hypernyms of DCI include executive.

DCI (noun)	administrator (noun)
the head of the United States Intelligence Community and director of the Central Intelligence Agency	someone who administers a business
	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