1. Plural of proper; in liturgy, the parts of a church service that vary according to the day or season (as opposed to the ordinary).
Usage: religious/liturgical; often used in plural form
2. Plural of proper; proper nouns or proper names.
Usage: grammar; less common usage

Examples

• The priest consulted the propers for the feast day to determine which prayers to recite.
• In the liturgical calendar, the propers change with each Sunday and holy day.
• The choir sang the propers assigned for the Christmas Mass.
• Understanding the distinction between the ordinary and the propers is essential for liturgical study.
• The book contained all the propers needed for the entire church year.