theater vs star

theater and star both are nouns.

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

theater (noun)	star (noun)
a building where theatrical performances or motion-picture shows can be presented	the topology of a network whose components are connected to a hub
the art of writing and producing plays	a star-shaped character * used in printing
a region in which active military operations are in progress	(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

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