live-bearer vs cypriniform fish

live-bearer and cypriniform fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
live-bearer	Yes	No	No	No
cypriniform fish	Yes	No	No	No

As nouns, cypriniform fish is a hypernym of live-bearer; that is, cypriniform fish is a word with a broader meaning than live-bearer:

live-bearer: small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control
cypriniform fish: a soft-finned fish of the order Cypriniformes

live-bearer (noun)	cypriniform fish (noun)
small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control	a soft-finned fish of the order Cypriniformes