B1
a length of time
Dictionary examples:
The period between alarm clocks is my favorite part of the day. (0.0)
The period between ordering pizza and its arrival feels like forever. (0.0)
During the no-internet period, I remembered books existed. (0.0)
The study will be carried out over a six-month period. (20.3)
Unemployment in the first half of the year was 2% lower than in the same period last year. (30.1)
Her work means that she spends long periods away from home. (32.2)
The house was built during the colonial period. (57.4)