Air Force ISR vs bureau

Air Force ISR and bureau both are nouns.

Word	Noun	Adjective	Verb	Adverb
Air Force ISR	Yes	No	No	No
bureau	Yes	No	No	No

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

Air Force ISR: an agency focused on ensuring that the United States military attains information superiority; operates worldwide ground sites and an array of airborne reconnaissance and surveillance platforms
bureau: an administrative unit of government

Other hypernyms of Air Force ISR include agency, authority, federal agency, government agency, office.

Air Force ISR (noun)	bureau (noun)
an agency focused on ensuring that the United States military attains information superiority; operates worldwide ground sites and an array of airborne reconnaissance and surveillance platforms	furniture with drawers for keeping clothes
	an administrative unit of government