barracuda vs acanthopterygian

barracuda and acanthopterygian both are nouns.

Word	Noun	Adjective	Verb	Adverb
barracuda	Yes	No	No	No
acanthopterygian	Yes	No	No	No

As nouns, acanthopterygian is a hypernym of barracuda; that is, acanthopterygian is a word with a broader meaning than barracuda:

barracuda: any voracious marine fish of the genus Sphyraena having an elongated cylindrical body and large mouth with projecting lower jaw and long strong teeth
acanthopterygian: a teleost fish with fins that are supported by sharp inflexible rays

Other hypernyms of barracuda include spiny-finned fish.

barracuda (noun)	acanthopterygian (noun)
any voracious marine fish of the genus Sphyraena having an elongated cylindrical body and large mouth with projecting lower jaw and long strong teeth	a teleost fish with fins that are supported by sharp inflexible rays