galaxy: المعنى والتعريفات

Any of numerous large-scale aggregates of stars, gas, and dust that constitute the universe, containing an average of 100 billion (1011) solar masses and ranging in diameter from 1,500 to 300,000 light-years. Also called nebula.

The Milky Way.

An assembly of brilliant, glamorous, or distinguished persons or things: a galaxy of theatrical performers.