domu

In a sentence

• Grem domov po kosilo.

  I am going home for lunch.

  The word 'domov' is used adverbially here to indicate movement towards home.

• Sem doma in kuham večerjo.

  I am at home and cooking dinner.

  The form 'doma' indicates a state or location at home, differing from 'domov' which implies movement.

• Pozdravljam te v mojem domu.

  I welcome you to my home.

  Here, 'domu' is the locative case of 'dom' (home) and indicates location within or to the home.