Kingston vs Jamaican capital

Kingston and Jamaican capital both are nouns.

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

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

Other synonyms of Kingston include capital of Jamaica.

Kingston (noun)	Jamaican capital (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