Civilities refers to polite and well-mannered behavior or actions. There are several synonyms that can be used in place of the word civilities such as courtesy, politeness, decorum, propriety, and etiquette. Courtesy emphasizes on being respectful and considerate towards others. Politeness is about showing good manners and being well-bred. Decorum denotes proper behavior in a particular setting or situation. Propriety stresses on doing what is socially acceptable and following the conventional norms. Etiquette emphasizes on following the set of protocols and manners that are generally expected from an individual. These synonyms of civilities can be used interchangeably depending upon the context and the type of behavior required.