cob vs gull

cob and gull both are nouns.

Word	Noun	Adjective	Verb	Adverb
cob	Yes	No	No	No
gull	Yes	No	Yes	No

As nouns, gull is a hypernym of cob; that is, gull is a word with a broader meaning than cob:

Other hypernyms of cob include sea gull, seagull.

cob (noun)	gull (noun)
adult male swan	mostly white aquatic bird having long pointed wings and short legs
stocky short-legged harness horse	a person who is gullible and easy to take advantage of
white gull having a black back and wings
nut of any of several trees of the genus Corylus

cob (verb)	gull (verb)
	fool or hoax
	make a fool or dupe of