galaxy vs galactic

galaxy is a noun but galactic is not a noun.

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

galaxy (noun)	galactic (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

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