/rɪˈmaɪndər/ – Noun
Definition: 1. việc nhắc nhở, thư nhắc nhở, bản ghi nhớ;
2. thông báo lặp lại.
A more thorough explanation: A reminder is a communication or notification that serves to prompt or refresh someone’s memory about a particular task, event, obligation, or deadline. It is typically sent to ensure that the recipient does not forget or overlook the matter at hand.
Example: The attorney sent a reminder to the client about the upcoming court date.