razaznati

1. (by sight or hearing) to make out; to discern
   U mraku nisam mogao da razaznam ko stoji na vratima. — In the dark I couldn't make out who was standing at the door.
   Od buke nije razaznala ni reč. — Because of the noise she couldn't make out a single word.
2. (something from something) to tell apart; to distinguish
   Teško je razaznati istinu od laži u tim vestima. — It's hard to tell truth from lies in that news.

When comparing, the construction is razaznati nešto od nečega.