capital of Ireland vs Dublin

capital of Ireland and Dublin both are nouns.

Word	Noun	Adjective	Verb	Adverb
capital of Ireland	Yes	No	No	No
Dublin	Yes	No	No	No

As nouns, capital of Ireland and Dublin are synonyms defined as:

capital of Ireland and Dublin: capital and largest city and major port of the Irish Republic

Other synonyms of capital of Ireland include Irish capital.

capital of Ireland (noun)	Dublin (noun)
capital and largest city and major port of the Irish Republic	capital and largest city and major port of the Irish Republic