Bucuresti vs capital of Romania

Bucuresti and capital of Romania both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bucuresti	Yes	No	No	No
capital of Romania	Yes	No	No	No

As nouns, Bucuresti and capital of Romania are synonyms defined as:

Bucuresti and capital of Romania: national capital and largest city of Romania in southeastern Romania

Other synonyms of Bucuresti include Bucharest, Bucharesti.

Bucuresti (noun)	capital of Romania (noun)
national capital and largest city of Romania in southeastern Romania	national capital and largest city of Romania in southeastern Romania