galactic vs galaxy

galactic is not a noun while galaxy is a noun.

Word	Noun	Adjective	Verb	Adverb
galactic	No	Yes	No	No
galaxy	Yes	No	No	No

galactic (noun)	galaxy (noun)
	(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust
	a splendid assemblage (especially of famous people)
	tufted evergreen perennial herb having spikes of tiny white flowers and glossy green round to heart-shaped leaves that become coppery to maroon or purplish in fall

galactic (adjective)	galaxy (adjective)
of or relating to a galaxy (especially our galaxy the Milky Way)
inconceivably large