galaxy vs star

galaxy and star both are nouns.

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

galaxy (noun)	star (noun)
(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust	the topology of a network whose components are connected to a hub
a splendid assemblage (especially of famous people)	a star-shaped character * used in printing
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	(astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
	any celestial body visible (as a point of light) from the Earth at night
	an actor who plays a principal role
	someone who is dazzlingly skilled in any field
	a performer who receives prominent billing
	a plane figure with 5 or more points; often used as an emblem

galaxy (adjective)	star (adjective)
	indicating the most important performer or role