nickelodeon vs record player

nickelodeon and record player both are nouns.

Word	Noun	Adjective	Verb	Adverb
nickelodeon	Yes	No	No	No
record player	Yes	No	No	No

As nouns, record player is a hypernym of nickelodeon; that is, record player is a word with a broader meaning than nickelodeon:

nickelodeon: a cabinet containing an automatic record player; records are played by inserting a coin
record player: machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically

Other hypernyms of nickelodeon include phonograph.

nickelodeon (noun)	record player (noun)
a cabinet containing an automatic record player; records are played by inserting a coin	machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically