cutlassfish vs frost fish

cutlassfish and frost fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
cutlassfish	Yes	No	No	No
frost fish	Yes	No	No	No

As nouns, cutlassfish and frost fish are synonyms defined as:

cutlassfish and frost fish: long-bodied marine fishes having a long whiplike scaleless body and sharp teeth; closely related to snake mackerel

Other synonyms of cutlassfish include hairtail.

cutlassfish (noun)	frost fish (noun)
long-bodied marine fishes having a long whiplike scaleless body and sharp teeth; closely related to snake mackerel	long-bodied marine fishes having a long whiplike scaleless body and sharp teeth; closely related to snake mackerel