NAWCWPNS vs federal agency

NAWCWPNS and federal agency both are nouns.

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

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

NAWCWPNS: the principal agency of the United States Navy for research and development for air warfare and missile weapon systems
federal agency: an administrative unit of government

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

NAWCWPNS (noun)	federal agency (noun)
the principal agency of the United States Navy for research and development for air warfare and missile weapon systems	an administrative unit of government