whaler vs gob

whaler and gob both are nouns.

Word	Noun	Adjective	Verb	Adverb
whaler	Yes	No	No	No
gob	Yes	No	No	No

As nouns, gob is a hypernym of whaler; that is, gob is a word with a broader meaning than whaler:

Other hypernyms of whaler include Jack-tar, Jack, mariner, old salt, sea dog, seafarer, seaman, tar.

whaler (noun)	gob (noun)
a ship engaged in whale fishing	informal terms for the mouth
a seaman who works on a ship that hunts whales	a lump of slimy stuff
	a man who serves as a sailor