English sole vs Parophrys vitulus

English sole and Parophrys vitulus both are nouns.

Word	Noun	Adjective	Verb	Adverb
English sole	Yes	No	No	No
Parophrys vitulus	Yes	No	No	No

As nouns, English sole and Parophrys vitulus are synonyms defined as:

English sole and Parophrys vitulus: popular pale brown food flatfish of the Pacific coast of North America

Other synonyms of English sole include lemon sole.

English sole (noun)	Parophrys vitulus (noun)
popular pale brown food flatfish of the Pacific coast of North America	popular pale brown food flatfish of the Pacific coast of North America
highly valued almost pure white flesh