cowrie vs tiger cowrie

cowrie and tiger cowrie both are nouns.

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

As nouns, tiger cowrie is a hyponym of cowrie; that is, tiger 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
tiger cowrie: cowrie whose shell is used for ornament

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

cowrie (noun)	tiger 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 ornament