pro·pri·e·ty 
/prəˈprajəti/ noun
plural pro·pri·e·ties /prəˈprajəti/ noun formal 1 [noncount] : behavior that is accepted as socially or morally correct and proper
▪ She acted with propriety. ▪ He went beyond the bounds of propriety. [=he acted improperly] ▪ She conducted herself with propriety. 2 [noncount] : the state or quality of being correct and proper
▪ They debated the propriety of the punishment that he was given. 3 proprieties [plural] : rules of correct social behavior
▪ When attending a wedding, there are certain proprieties that must be observed. ▪ the social proprieties
▪ She acted with propriety. ▪ He went beyond the bounds of propriety. [=he acted improperly] ▪ She conducted herself with propriety.
▪ They debated the propriety of the punishment that he was given.
▪ When attending a wedding, there are certain proprieties that must be observed. ▪ the social proprieties
