Phoxinus phoxinus vs minnow

Phoxinus phoxinus and minnow both are nouns.

Word	Noun	Adjective	Verb	Adverb
Phoxinus phoxinus	Yes	No	No	No
minnow	Yes	No	No	No

As nouns, Phoxinus phoxinus and minnow are synonyms defined as:

Phoxinus phoxinus and minnow: very small European freshwater fish common in gravelly streams

Phoxinus phoxinus (noun)	minnow (noun)
very small European freshwater fish common in gravelly streams	very small European freshwater fish common in gravelly streams