hake vs ling

hake and ling both are nouns.

Word	Noun	Adjective	Verb	Adverb
hake	Yes	No	No	No
ling	Yes	No	No	No

As nouns, ling is a hyponym of hake; that is, ling is a word with a more specific, narrower meaning than hake:

Other hyponyms of hake include Merluccius bilinearis, silver hake, whiting.

hake (noun)	ling (noun)
any of several marine food fishes related to cod	elongated marine food fish of Greenland and northern Europe; often salted and dried
the lean flesh of a fish similar to cod	American hakes
	elongate freshwater cod of northern Europe and Asia and North America having barbels around its mouth
	common Old World heath represented by many varieties; low evergreen grown widely in the Northern Hemisphere
	water chestnut whose spiny fruit has two rather than 4 prongs