/prɪ'rɒgətɪv; prɪ`rɑˇətɪv/
n right or privilege, esp one belonging to a particular person or group 权利; （尤指）特权
*It is the Prime Minister's prerogative to decide when to call an election. 决定大选的日期是首相的职权.
* A monarch has the prerogative of pardoning criminals. 君主享有对罪犯的赦免权.
* the,royal prerogative, ie (in Britain), the (theoretical) right of the sovereign to act without the approval of Parliament 皇家的特权（在英国, 指国君名义上享有的不经议会认可而采取行动的权利）.

n [C usually singular]
[Date: 1300-1400; Language: French;Origin: prérogative, from Latin praerogativus 'voting first in a Roman election', from rogare 'to ask']
a right that someone has, especially because of their importance or social position
prerogative of
　Education was once the prerogative of the elite.
　Arriving late is a woman's prerogative .
　the royal prerogative (=the rights of kings and queens)