Working days are the days of the week when people typically work. However, there are various synonyms for the term 'working days.' These synonyms include 'business days,' 'workdays,' 'weekday,' and 'office days.' 'Business days' is often used in commercial and financial contexts to refer to days in which businesses operate and financial transactions can be carried out. 'Workdays' and 'weekday' are more general terms that are used to refer to any day of the week except for Saturdays and Sundays. Finally, 'office days' is another term that is commonly used to refer to the days when people work in offices.