nationalism
/ˈnæʃənəˌlɪzəm/
noun
Britannica Dictionary definition of NATIONALISM
[noncount]
1
:
a feeling that people have of being loyal to and proud of their country often with the belief that it is better and more important than other countries
—
compare patriotism
2
:
a desire by a large group of people (such as people who share the same culture, history, language, etc.) to form a separate and independent nation of their own