/ ˈgæləksi; NAmE / noun ( pl. -ies )
1.
[ C ] any of the large systems of stars, etc. in outer space
2.
the Galaxy (also the ˌMilky ˈWay ) [ sing. ] the system of stars that contains our sun and its planets, seen as a bright band in the night sky
3.
[ C ] ( informal ) a group of famous people, or people with a particular skill :
a galaxy of Hollywood stars
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WORD 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.