benzene ring vs benzine

benzene ring and benzine both are nouns.

Word	Noun	Adjective	Verb	Adverb
benzene ring	Yes	No	No	No
benzine	Yes	No	No	No

As nouns, benzine is a hypernym of benzene ring; that is, benzine is a word with a broader meaning than benzene ring:

benzene ring: a closed chain of 6 carbon atoms with hydrogen atoms attached
benzine: a colorless liquid hydrocarbon; highly flammable; carcinogenic; the simplest of the aromatic compounds

Other hypernyms of benzene ring include benzene, benzol.

benzene ring (noun)	benzine (noun)
a closed chain of 6 carbon atoms with hydrogen atoms attached	a colorless liquid hydrocarbon; highly flammable; carcinogenic; the simplest of the aromatic compounds