MCIA vs federal agency

MCIA and federal agency both are nouns.

Word	Noun	Adjective	Verb	Adverb
MCIA	Yes	No	No	No
federal agency	Yes	No	No	No

As nouns, federal agency is a hypernym of MCIA; that is, federal agency is a word with a broader meaning than MCIA:

MCIA: an agency of the United States Marine Corps that provides responsive and broad intelligence support for the worldwide Marine Corps organization
federal agency: an administrative unit of government

Other hypernyms of MCIA include agency, authority, bureau, government agency, office.

MCIA (noun)	federal agency (noun)
an agency of the United States Marine Corps that provides responsive and broad intelligence support for the worldwide Marine Corps organization	an administrative unit of government