Naucrates ductor vs pilotfish

Naucrates ductor and pilotfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
Naucrates ductor	Yes	No	No	No
pilotfish	Yes	No	No	No

As nouns, Naucrates ductor and pilotfish are synonyms defined as:

Naucrates ductor and pilotfish: small pelagic fish often accompanying sharks or mantas

Naucrates ductor (noun)	pilotfish (noun)
small pelagic fish often accompanying sharks or mantas	small pelagic fish often accompanying sharks or mantas