reminder
a thing that causes someone to remember something.
a letter sent to remind someone of an obligation, especially to pay a bill.
リマインダー
/suto3/google.iconreminder
image reminder
define reminder
wikipedia reminder
weblio reminder
kotobank reminder
jisho reminder
#task-management-term
reminder-icon
https://scrapbox.io/api/pages/suto3/reminder-icon/icon#.svg