bongo vs membranophone

bongo and membranophone both are nouns.

Word	Noun	Adjective	Verb	Adverb
bongo	Yes	No	No	No
membranophone	Yes	No	No	No

As nouns, membranophone is a hypernym of bongo; that is, membranophone is a word with a broader meaning than bongo:

bongo: a small drum; played with the hands
membranophone: a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end

Other hypernyms of bongo include drum, tympan.

bongo (noun)	membranophone (noun)
large forest antelope of central Africa having a reddish-brown coat with white stripes and spiral horns	a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end
a small drum; played with the hands