adjective
Pertaining to a nation or country, especially as a whole; affecting, shared by, or existing throughout all of a nation.
Belonging to or characteristic of a specific nation or country, as opposed to others.
(now rare) Nationalistic; patriotic.
noun
A subject of a nation.
(usually in the plural) A tournament in which participants from all over the nation compete.
(usually in the plural, journalism) A national newspaper.
(law) Somebody born under the authority of a given State.