cowrie vs money cowrie

cowrie and money cowrie both are nouns.

Word	Noun	Adjective	Verb	Adverb
cowrie	Yes	No	No	No
money cowrie	Yes	No	No	No

As nouns, money cowrie is a hyponym of cowrie; that is, money cowrie is a word with a more specific, narrower meaning than cowrie:

cowrie: any of numerous tropical marine gastropods of the genus Cypraea having highly polished usually brightly marked shells
money cowrie: cowrie whose shell is used for money in parts of the southern Pacific and in parts of Africa

Other hyponyms of cowrie include Cypraea moneta, Cypraea tigris, tiger cowrie.

cowrie (noun)	money cowrie (noun)
any of numerous tropical marine gastropods of the genus Cypraea having highly polished usually brightly marked shells	cowrie whose shell is used for money in parts of the southern Pacific and in parts of Africa