television vs CRT

television and CRT both are nouns.

Word	Noun	Adjective	Verb	Adverb
television	Yes	No	No	No
CRT	Yes	No	No	No

television (noun)	CRT (noun)
a telecommunication system that transmits images of objects (stationary or moving) between distant points	a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen
an electronic device that receives television signals and displays them on a screen
broadcasting visual images of stationary or moving objects