decorum
/dɪˈkɔːrəm डिˈकॉरम्/ noun [U] ( formal ) polite behaviour that is appropriate in a social situation (सामाजिक परिस्थितियों में) विनम्र आचरण; शिष्टाचार
Students are taught to maintain a sense of decorum in school.
✪ पर्याय propriety