ghetto blaster vs stereo

ghetto blaster and stereo both are nouns.

Word	Noun	Adjective	Verb	Adverb
ghetto blaster	Yes	No	No	No
stereo	Yes	Yes	No	No

As nouns, stereo is a hypernym of ghetto blaster; that is, stereo is a word with a broader meaning than ghetto blaster:

ghetto blaster: a portable stereo
stereo: reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound

Other hypernyms of ghetto blaster include stereo system, stereophonic system, stereophony.

ghetto blaster (noun)	stereo (noun)
a portable stereo	reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound
	two photographs taken from slightly different angles that appear three-dimensional when viewed together

ghetto blaster (adjective)	stereo (adjective)
	designating the reproduction of sound using two or more independent audio channels