podsetnik

1. reminder
   Stavila sam podsetnik u telefon za sutrašnji sastanak. — I set a reminder on my phone for tomorrow's meeting.
   Ova slika je podsetnik na lepe dane. — This picture is a reminder of happy days.
2. memo; notebook; to-do list
   Zapisao je njen broj u podsetnik. — He wrote her number down in his notebook.
   Na vratima frižidera stoji podsetnik za kupovinu. — There's a shopping memo on the fridge door.
3. (study aid) quick reference; crib sheet
   Kupio sam podsetnik iz matematike za pripremu prijemnog. — I bought a maths quick reference to prepare for the entrance exam.
   Na kraju udžbenika nalazi se gramatički podsetnik. — At the end of the textbook there is a grammar quick reference.

What it reminds of: podsetnik na + acc.