preko

In a sentence

• Gledali smo zalazak sunca preko planina.

  We watched the sunset over the mountains.

  In this sentence, 'preko' is used to denote spatial coverage, indicating something is beyond or across something else.

• Našao sam posao preko prijatelja.

  I found a job through a friend.

  Here, 'preko' implies mediation or the means by which an action is achieved.

• Prešli su cestu preko zebre.

  They crossed the road using the crosswalk.

  In this case, 'preko' indicates the mode or manner of crossing, emphasizing the path used for the action.