dis·cre·tion
[dih-skresh-uhn]
noun
1.the power or right to decide or act according to one’s own judgment; freedom of judgment or choice: It is entirely within my discretion whether I will go or stay.
2.the quality of being discreet, especially with reference to one’s own actions or speech; prudence or decorum: Throwing all discretion to the winds, he blurted out the truth.
Idiom
3. at discretion, at one’s option or pleasure: They were allowed to work overtime at discretion.