ova

In a sentence

• Ova knjiga je zanimljiva.

  This book is interesting.

  The word 'ova' is used as a demonstrative pronoun to indicate proximity to the speaker, meaning 'this', and it agrees in gender and number with the noun 'knjiga' (feminine singular).

• Vidim ovu pticu na stablu.

  I see this bird on the tree.

  Here, 'ovu' is the accusative singular feminine form of 'ova', indicating the direct object 'pticu'. The agreement in case and gender shows its syntactic function.

• Ove stolice su nove.

  These chairs are new.

  In this case, 'ove' is the nominative plural feminine form, agreeing with the plural subject 'stolice' (feminine plural), indicating multiple items close to the speaker.