CTC vs federal agency

CTC and federal agency both are nouns.

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

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

CTC: an agency that helps the Director of Central Intelligence coordinate counterterrorist efforts in order to preempt and disrupt and defeat terrorist activities at the earliest possible stage
federal agency: an administrative unit of government

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

CTC (noun)	federal agency (noun)
an agency that helps the Director of Central Intelligence coordinate counterterrorist efforts in order to preempt and disrupt and defeat terrorist activities at the earliest possible stage	an administrative unit of government