vinyl cyanide vs nitrile

vinyl cyanide and nitrile both are nouns.

Word	Noun	Adjective	Verb	Adverb
vinyl cyanide	Yes	No	No	No
nitrile	Yes	No	No	No

As nouns, nitrile is a hypernym of vinyl cyanide; that is, nitrile is a word with a broader meaning than vinyl cyanide:

vinyl cyanide: a colorless liquid unsaturated nitrile made from propene
nitrile: any of a class of organic compounds containing the cyano radical -CN

Other hypernyms of vinyl cyanide include cyanide, nitril.

vinyl cyanide (noun)	nitrile (noun)
a colorless liquid unsaturated nitrile made from propene	any of a class of organic compounds containing the cyano radical -CN