BMDO vs bureau

BMDO and bureau both are nouns.

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

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

BMDO: an agency in the Department of Defense that is responsible for making ballistic missile defense a reality
bureau: an administrative unit of government

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

BMDO (noun)	bureau (noun)
an agency in the Department of Defense that is responsible for making ballistic missile defense a reality	furniture with drawers for keeping clothes
	an administrative unit of government