Hampton Roads vs Hampton Roads

Hampton Roads and Hampton Roads both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hampton Roads	Yes	No	No	No
Hampton Roads	Yes	No	No	No

Hampton Roads (noun)	Hampton Roads (noun)
a naval battle of the American Civil War (1862); the indecisive battle between the Monitor and the Merrimac	a naval battle of the American Civil War (1862); the indecisive battle between the Monitor and the Merrimac
a channel in southeastern Virginia through which the Elizabeth River and the James River flow into Chesapeake Bay	a channel in southeastern Virginia through which the Elizabeth River and the James River flow into Chesapeake Bay