discretion
noun [ U ] uk/dɪˈskreʃ.ən/ us/dɪˈskreʃ.ən/
(CAREFUL BEHAVIOUR)
C2 慎重，谨慎；守口如瓶
the ability to behave without causing embarrassment or attracting too much attention, especially by keeping information secret
"Can you trust him with this?" "Yes, he's the soul of discretion (= he will not tell other people)." “在这件事上你能相信他吗？”“当然，他可是个守口如瓶的人。”
(RIGHT TO CHOOSE)
formal决定权;决策力
the right or ability to decide something
Students can be expelled at the discretion of the principal (= if the principal decides it). 校长有权开除学生。
I leave the decision to your discretion (= for you to decide). 我让你来决定这件事。
Idiom
discretion is the better part of valouridiom saying 勇敢者贵在审慎。
said when you believe it is wise to be careful and avoid unnecessary risks