CCRC vs government agency

CCRC and government agency both are nouns.

Word	Noun	Adjective	Verb	Adverb
CCRC	Yes	No	No	No
government agency	Yes	No	No	No

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

CCRC: an agency in the Department of Defense that is a national center for research on all aspects of injury control and casualty care
government agency: an administrative unit of government

Other hypernyms of CCRC include agency, authority, bureau, federal agency, office.

CCRC (noun)	government agency (noun)
an agency in the Department of Defense that is a national center for research on all aspects of injury control and casualty care	an administrative unit of government