hairtail vs frost fish

hairtail and frost fish both are nouns.

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

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

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

Other synonyms of hairtail include cutlassfish.

hairtail (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