beleška

1. note
   Na predavanju uvek pravim beleške. — I always take notes at lectures.
   Ostavio sam ti belešku na frižideru. — I left you a note on the fridge.
2. (in a book, newspaper) note; short piece
   Na kraju knjige je beleška o piscu. — There's a note about the author at the end of the book.

'To take notes' is praviti beleške or voditi beleške.