reminder
🇺🇸
/rɪˈmaɪndər/
🇬🇧
/rɪˈmaɪndə(r)/
something that helps you remember or think about someone or something
The alarm is a good reminder to take your medicine every morning.
アラームは毎朝薬を飲むことを思い出させる良い方法です。
a message that tells someone they forgot to do something
The library sends a reminder when your books are due back.
図書館は本の返却期限が近づくとリマインダーを送ります。