grenadier vs rattail

grenadier and rattail both are nouns.

Word	Noun	Adjective	Verb	Adverb
grenadier	Yes	No	No	No
rattail	Yes	No	No	No

As nouns, grenadier and rattail are synonyms defined as:

grenadier and rattail: deep-sea fish with a large head and body and long tapering tail

Other synonyms of grenadier include rattail fish.

grenadier (noun)	rattail (noun)
deep-sea fish with a large head and body and long tapering tail	deep-sea fish with a large head and body and long tapering tail
an infantryman equipped with grenades