1. The quality or state of being proper; correctness, appropriateness, or conformity to accepted standards of behavior or conduct.
Usage: Plural form of properness; Often used in formal or academic contexts
2. Instances or examples of proper or correct behavior, dress, or social conduct.
Usage: Plural usage emphasizing multiple instances or aspects

Examples

• The school emphasized the propernesses of formal dress at graduation ceremonies.
• She was known for her strict adherence to social propernesses.
• The propernesses of business etiquette require punctuality and professional communication.
• Different cultures have varying propernesses regarding personal space and greetings.
• The teacher corrected the students on the propernesses of academic writing.
• He questioned whether all the propernesses of tradition were still relevant in modern society.