finnan haddie vs haddock

finnan haddie and haddock both are nouns.

Word	Noun	Adjective	Verb	Adverb
finnan haddie	Yes	No	No	No
haddock	Yes	No	No	No

As nouns, haddock is a hypernym of finnan haddie; that is, haddock is a word with a broader meaning than finnan haddie:

finnan haddie: haddock usually baked but sometimes broiled with lots of butter
haddock: lean white flesh of fish similar to but smaller than cod; usually baked or poached or as fillets sauteed or fried

finnan haddie (noun)	haddock (noun)
haddock usually baked but sometimes broiled with lots of butter	important food fish on both sides of the Atlantic; related to cod but usually smaller
	lean white flesh of fish similar to but smaller than cod; usually baked or poached or as fillets sauteed or fried