hegemony
noun [ U ] politics formal uk/hɪˈɡem.ə.ni/ /hɪˈdʒem.ə.ni/ /ˈheɡ.ɪ.mə.ni/ /ˈhedʒ.ɪ.mə.ni/ us/hɪˈdʒem.ə.ni/ /ˈhedʒ.ə.moʊ.ni/
（尤指国家的）霸权，支配权
(especially of countries) the position of being the strongest and most powerful and therefore able to control others
The three nations competed for regional hegemony. 这3个国家就地区霸权展开争夺。