To centralize a country, state, or organization means to create a system in which one central group of people gives instructions to regional groups.
例句
In the mass production era multinational firms tended to centralize their operations...在大規模生產的時代，跨國公司往往實行集權化經營。The economy of the times made it difficult to support centralized rule.當時的經濟狀況不利于實行集權統治。
英英詞典釋義
Noun
1. the act of consolidating power under a central control