galaxy

A galaxy is a large area, particularly of dust, stars and gas that makes up a universe. (noun)

An example of a galaxy is the Milky Way.

See galaxy in Webster's New World College Dictionary

noun pl. galaxies

the Milky Way: often with the
a large, independent system of stars, typically containing millions to hundreds of billions of stars: the four classes of galaxies are spiral, barred spiral, elliptical, or irregular, depending on their shape
1. an assembly of brilliant or famous people
2. a brilliant array of things

See galaxy in American Heritage Dictionary 4

(gălˈək-sē)

noun pl. gal·ax·ies

a. 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.
b. often Galaxy The Milky Way.
An assembly of brilliant, glamorous, or distinguished persons or things: a galaxy of theatrical performers.

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