As a Noun:
1. One of an immense number of large balls of burning gas in space. They appear to us as small points of light in the sky on clear nights. English = star.
2. A flat object which has four, five, or more points sticking out of it in a regular pattern. English = star.
As a Verb or Adjective:
1. Of the night sky, to have stars in it. English = (be) starry.
2. Of a star, to shine with an unsteady light. English = twinkle.