helpfulreminder
nounUK /ˈhɛlpfʊl rɪˈmaɪndə/
US /ˈhɛlpfəl rɪˈmaɪndər/
A helpful reminder is a kind message that helps you remember something.
The teacher sent a helpful reminder about the field trip tomorrow.
OTHER MEANINGS
2. A short message that helps someone not forget a task.
I got a helpful reminder to bring my library books back.
3. A kind warning that helps you avoid a mistake.
The app gave a helpful reminder to save my work before closing.
4. A note that makes something easier to remember.
Mom left a helpful reminder on the fridge about my dentist appointment.