political science
US /pəˈlɪt.ɪ.kəl ˈsaɪ.əns/
UK /pəˈlɪt.ɪ.kəl ˈsaɪ.əns/

1.
the study of the state, nation, government, and politics and policies of governments
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She is majoring in political science at the university.
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His research focuses on international relations within political science.