monarch：释义

One who reigns over a state or territory, usually for life and by hereditary right, especially:

A sole and absolute ruler.

A sovereign, such as a king or empress, often with constitutionally limited authority: a constitutional monarch.

One that commands or rules: "I am monarch of all I survey” ( William Cowper).

One that surpasses others in power or preeminence: "Mont Blanc is the monarch of the mountains” ( Byron).

A monarch butterfly.