gwiazdach

In a sentence

• Patrzę na gwiazdach w nocy.

  I am looking at the stars at night.

  Here, 'gwiazdach' is used as a grammatical error for 'gwiazdy', suggesting the stars.

• Znam historie o gwiazdach Hollywood.

  I know stories about Hollywood stars.

  In this sentence, 'gwiazdach' refers to 'stars' metaphorically as famous individuals in Hollywood.

• Mówi się, że przyszłość jest napisana w gwiazdach.

  It is said that the future is written in the stars.

  Here, 'gwiazdach' appears in an idiomatic expression, implying the stars have influence or predictions.