Surinam vs Republic of Suriname

Surinam and Republic of Suriname both are nouns.

Word	Noun	Adjective	Verb	Adverb
Surinam	Yes	No	No	No
Republic of Suriname	Yes	No	No	No

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

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

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

Surinam (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