substituteday

noun
UK /ˈsʌbstɪtjuːtdeɪ/
US /ˈsʌbstɪtuːtdeɪ/

A substitute day is a day when someone else does your job or takes your place for a while.

When our teacher was sick, we had a substitute day with a guest teacher.


OTHER MEANINGS

2. A day set aside to make up for a missed lesson or event.

The school scheduled a substitute day to replace the snow day.

3. A day when a temporary worker fills in for an absent employee.

The office ran smoothly thanks to a substitute day arranged by the manager.

4. A day on which an alternative activity replaces the usual routine.

Rain forced a substitute day of indoor games instead of the field trip.