izviniti

1. (izviniti se) to apologize
   Izvinio sam joj se što sam zakasnio. — I apologized to her for being late.
   Moraš da se izviniš bratu. — You have to apologize to your brother.
2. (in the imperative) sorry; excuse me
   Izvinite, gde je autobuska stanica? — Excuse me, where is the bus stop?
   Izvini, nisam te video. — Sorry, I didn't see you.
3. (+ acc.) to excuse; to forgive
   Izvinićete me, moram da se javim na telefon. — You'll excuse me, I have to take this call.

The person apologized to is in the dative, the reason takes za + acc.: izviniti se nekome za nešto.