mandolin vs chordophone

mandolin and chordophone both are nouns.

Word	Noun	Adjective	Verb	Adverb
mandolin	Yes	No	No	No
chordophone	Yes	No	No	No

As nouns, chordophone is a hypernym of mandolin; that is, chordophone is a word with a broader meaning than mandolin:

mandolin: a stringed instrument related to the lute, usually played with a plectrum
chordophone: a stringed instrument of the group including harps, lutes, lyres, and zithers

mandolin (noun)	chordophone (noun)
a stringed instrument related to the lute, usually played with a plectrum	a stringed instrument of the group including harps, lutes, lyres, and zithers