CDC vs bureau

CDC and bureau both are nouns.

Word	Noun	Adjective	Verb	Adverb
CDC	Yes	No	No	No
bureau	Yes	No	No	No

As nouns, bureau is a hypernym of CDC; that is, bureau is a word with a broader meaning than CDC:

CDC: a federal agency in the Department of Health and Human Services; located in Atlanta; investigates and diagnoses and tries to control or prevent diseases (especially new and unusual diseases)
bureau: an administrative unit of government

Other hypernyms of CDC include agency, authority, federal agency, government agency, office.

CDC (noun)	bureau (noun)
a federal agency in the Department of Health and Human Services; located in Atlanta; investigates and diagnoses and tries to control or prevent diseases (especially new and unusual diseases)	furniture with drawers for keeping clothes
	an administrative unit of government