Dutch Guiana vs Republic of Suriname

Dutch Guiana and Republic of Suriname both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dutch Guiana	Yes	No	No	No
Republic of Suriname	Yes	No	No	No

As nouns, Dutch Guiana and Republic of Suriname are synonyms defined as:

Dutch Guiana and Republic of Suriname: a republic in northeastern South America on the Atlantic; achieved independence from the Netherlands in 1975

Other synonyms of Dutch Guiana include Netherlands Guiana, Surinam, Suriname.

Dutch Guiana (noun)	Republic of Suriname (noun)
a republic in northeastern South America on the Atlantic; achieved independence from the Netherlands in 1975	a republic in northeastern South America on the Atlantic; achieved independence from the Netherlands in 1975