Jamaican capital vs Kingston

Jamaican capital and Kingston both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jamaican capital	Yes	No	No	No
Kingston	Yes	No	No	No

As nouns, Jamaican capital and Kingston are synonyms defined as:

Other synonyms of Jamaican capital include capital of Jamaica.

Jamaican capital (noun)	Kingston (noun)
capital and largest city of Jamaica	capital and largest city of Jamaica
	a town on the Hudson River in New York
	a town in southeast Ontario on Lake Ontario near the head of the Saint Lawrence River