galaxy

As a proper noun galaxy

is (astronomy|dated) the milky way galaxy, from when it was thought the universe (our universe) had only one galaxy.

As an adjective pregalactic is

before formation of a galaxy.

Galaxy is a synonym of supercluster.

As a proper noun galaxy

is (astronomy|dated) the milky way galaxy, from when it was thought the universe (our universe) had only one galaxy.

As a noun supercluster is

(astronomy) an extended group of clusters of galaxies.

In galaxy terms the difference between galaxy and dig

is that galaxy is any of the collections of many millions of stars, galactic dust, black holes, etc. existing as independent and coherent systems, of which there are billions in the known universe while dig is dwarf irregular galaxy.

As nouns the difference between galaxy and dig

is that galaxy is the Milky Way; the apparent band of concentrated stars which appears in the night sky over earth while dig is an archeological investigation.

As a proper noun Galaxy

is the Milky Way Galaxy, from when it was thought the Universe (our universe) had only one galaxy.

As a verb dig is

to move hard-packed earth out of the way, especially downward to make a hole with a shovel. Or to drill, or the like, through rocks, roads, or the like. More generally, to make any similar hole by moving material out of the way.

As a proper noun galaxy

is (astronomy|dated) the milky way galaxy, from when it was thought the universe (our universe) had only one galaxy.