national vs nation

national and nation both are nouns.

Word	Noun	Adjective	Verb	Adverb
national	Yes	Yes	No	No
nation	Yes	No	No	No

national (noun)	nation (noun)
a person who owes allegiance to that nation	a politically organized body of people under a single government
	the people who live in a nation or country
	a federation of tribes (especially Native American tribes)

national (adjective)	nation (adjective)
limited to or in the interests of a particular nation
concerned with or applicable to or belonging to an entire nation or country
of or relating to or belonging to a nation or country
of or relating to nationality
characteristic of or peculiar to the people of a nation
inside the country
owned or maintained for the public by the national government