dva

In a sentence

• Imam dva psa.

  I have two dogs.

  Here 'dva' is used as the cardinal number 'two' modifying the noun 'psa' (dogs) to indicate quantity.

• Dva puta sam pogledao taj film.

  I have watched that movie twice.

  In this sentence, 'dva' modifies 'puta', meaning 'times', to indicate frequency and emphasize repetition.

• Ovog puta bilo je drugačije nego dva puta prije.

  This time it was different from the two previous times.

  Here, 'dva' is again quantitative, used with 'puta', but it refers to something specific in the past as part of a comparison.