flying gurnard vs butterflyfish

flying gurnard and butterflyfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
flying gurnard	Yes	No	No	No
butterflyfish	Yes	No	No	No

As nouns, flying gurnard and butterflyfish are synonyms defined as:

flying gurnard and butterflyfish: tropical fish with huge fanlike pectoral fins for underwater gliding; unrelated to searobins

Other synonyms of flying gurnard include flying robin.

flying gurnard (noun)	butterflyfish (noun)
tropical fish with huge fanlike pectoral fins for underwater gliding; unrelated to searobins	tropical fish with huge fanlike pectoral fins for underwater gliding; unrelated to searobins