razbijati

1. to break; to smash
   Deca stalno razbijaju čaše dok se igraju. — The kids keep breaking glasses while they play.
   Neko nam svake noći razbija prozore na zgradi. — Someone smashes the windows of our building every night.
2. (razbijati se) to break; to shatter
   Talasi se razbijaju o stene. — The waves are breaking against the rocks.
3. (of fear, boredom) to dispel; to relieve
   Dosadu na putu razbijamo pričanjem viceva. — We relieve the boredom on the road by telling jokes.
4. (of a group, enemy) to crush; to break up
   Policija uspešno razbija kriminalne grupe u gradu. — The police are successfully breaking up criminal gangs in the city.
5. slang (of a song, person) to rock; to be awesome
   Ova pesma stvarno razbija! — This song really rocks!

The perfective is razbiti; 'to break a banknote' is usually said with it: razbiti hiljadarku.