1. Of, relating to, or belonging to a nation as an organized whole: a national anthem.
2. Of or relating to nationality: their national origin.
3. Characteristic of or peculiar to the people of a nation: a national trait.
4. Of or maintained by the government of a nation: a national landmark.
5. Being in the interest of one's own nation: Isolationism is a strictly national policy.
6. Devoted to one's own nation or its interests; patriotic.