Den Haag vs 's Gravenhage

Den Haag and 's Gravenhage both are nouns.

Word	Noun	Adjective	Verb	Adverb
Den Haag	Yes	No	No	No
's Gravenhage	Yes	No	No	No

As nouns, Den Haag and 's Gravenhage are synonyms defined as:

Den Haag and 's Gravenhage: the site of the royal residence and the de facto capital in the western part of the Netherlands; seat of the International Court of Justice

Other synonyms of Den Haag include The Hague.

Den Haag (noun)	's Gravenhage (noun)
the site of the royal residence and the de facto capital in the western part of the Netherlands; seat of the International Court of Justice	the site of the royal residence and the de facto capital in the western part of the Netherlands; seat of the International Court of Justice