Definitions

1. noun

behavior or manners considered proper or polite for a particular social situation or setting

“She maintained a sense of decorum at the formal dinner party.”

2. noun

a standard of proper or polite behavior

“The teacher emphasized the importance of decorum in the classroom.”

3. verb

to behave in a dignified or proper manner

“The politician decorumed himself by apologizing for his previous statement.”

4. noun

a sense of propriety or good taste

“She lacked decorum in her choice of clothing.”