transition period

noun
UK /trænˈzɪʃən ˈpɪəriəd/
US /trænˈzɪʃən ˈpɪriəd/

A transition period is the time when something slowly changes from one way to another.

The school gave us a transition period to get used to the new classroom.


OTHER MEANINGS

2. A set time allowed for moving from one job, school, or system to another.

New employees get a three-month transition period before their review.

3. A temporary stage between two stable states in nature or science.

During the transition period, the caterpillar becomes a butterfly.

4. A short break or pause between two activities.

There is a transition period between the morning and afternoon classes.