NGA vs Defense Department

NGA and Defense Department both are nouns.

Word	Noun	Adjective	Verb	Adverb
NGA	Yes	No	No	No
Defense Department	Yes	No	No	No

NGA (noun)	Defense Department (noun)
a combat support agency that provides geographic intelligence in support of national security	the federal department responsible for safeguarding national security of the United States; created in 1947