kindreminder
nounUK /ˌkaɪnd rɪˈmaɪn.dər/
US /ˌkaɪnd rɪˈmaɪn.dɚ/
A kind reminder is a gentle message that helps you remember something.
I got a kind reminder from my teacher about bringing my library book tomorrow.
OTHER MEANINGS
2. A polite note sent to help someone remember a deadline or task.
The office sent a kind reminder about the meeting on Friday.
3. A friendly hint given to help someone avoid a mistake.
She gave him a kind reminder to check his spelling before sending the email.
4. A soft warning that something needs attention soon.
A kind reminder popped up on my phone to water the plants.