noun
Refers to the system of government where a monarch is the head of state. Often contrasted with 共和制 (republic).
イギリスは立憲君主制の国です。
The United Kingdom is a constitutional monarchy.
君主制と共和制の違いについて議論した。
We discussed the difference between monarchy and republic.
Compound of 君主 (monarch) and 制 (system). The spelling 君主政 uses 政 (government) instead, with the same reading and meaning.