Manila vs capital of the Philippines

Manila and capital of the Philippines both are nouns.

Word	Noun	Adjective	Verb	Adverb
Manila	Yes	No	No	No
capital of the Philippines	Yes	No	No	No

As nouns, Manila and capital of the Philippines are synonyms defined as:

Manila and capital of the Philippines: the capital and largest city of the Philippines; located on southern Luzon

Manila (noun)	capital of the Philippines (noun)
the capital and largest city of the Philippines; located on southern Luzon	the capital and largest city of the Philippines; located on southern Luzon