きかん
period; era
noun
このプロジェクトの期間は3ヶ月です。
This project lasts 3 months.
キャンペーン期間中は20%割引になります。
During the campaign period, you get a 20% discount.
Popoling schedules reviews so words actually stick — plus speaking practice and guided conversations.
Start free14 days free. No card, no auto-charge.