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galaxy

Pronunciation: /ˈgaləksi/

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Definition of galaxy

noun (plural galaxies)

a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
(the Galaxy) the galaxy of which the solar system is a part; the Milky Way.
a large group of impressive people or things:the four musicians have played with a galaxy of stars

Origin:

late Middle English (originally referring to the Milky Way): via Old French from medieval Latin galaxia, from Greek galaxias (kuklos) 'milky (vault)', from gala, galakt- 'milk'