- Any of those days of a week on which work is done. The official working days in many countries are Monday to Friday (even though many people work on weekends).
- It will take five working days to process your application.
- The part of a day in which work is done; the number of hours one must work per day for a specified wage.
- Your working day is 8 hours.
- workday (mainly US)
- (part of the day): 9 to 5, nine to five
- (day on which work is done): weekday
- (day on which work is done in legal and official usage): business day
day of a week in which work is done