A common year is the standard 365-day year that we experience every year except for leap years. However, there are many synonyms you can use to describe this type of year such as a regular year, standard year, ordinary year, non-leap year, and typical year. These terms indicate that the year follows the usual calendar format and contains the standard number of days. While they may not be the most exciting, these synonyms are important to know if you are discussing or writing about the calendar system and its various components.