national capital vs Lassa

national capital and Lassa both are nouns.

Word	Noun	Adjective	Verb	Adverb
national capital	Yes	No	No	No
Lassa	Yes	No	No	No

national capital (noun)	Lassa (noun)
the capital city of a nation	the sacred city of Lamaism; known as the Forbidden City for its former inaccessibility and hostility to strangers