walleye vs jack salmon

walleye and jack salmon both are nouns.

Word	Noun	Adjective	Verb	Adverb
walleye	Yes	No	No	No
jack salmon	Yes	No	No	No

As nouns, walleye and jack salmon are synonyms defined as:

Other synonyms of walleye include dory, Stizostedion vitreum, walleyed pike.

walleye (noun)	jack salmon (noun)
pike-like freshwater perches	pike-like freshwater perches
strabismus in which one or both eyes are directed outward