cutlassfish vs hairtail

cutlassfish and hairtail both are nouns.

Word	Noun	Adjective	Verb	Adverb
cutlassfish	Yes	No	No	No
hairtail	Yes	No	No	No

As nouns, cutlassfish and hairtail are synonyms defined as:

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

Other synonyms of cutlassfish include frost fish.

cutlassfish (noun)	hairtail (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