gull vs cod

gull and cod both are nouns.

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

As verbs, gull and cod are synonyms defined as:

Other synonyms of gull include befool, dupe, fool, put on, put one across, put one over, slang, take in.

gull (noun)	cod (noun)
mostly white aquatic bird having long pointed wings and short legs	major food fish of Arctic and cold-temperate waters
a person who is gullible and easy to take advantage of	lean white flesh of important North Atlantic food fish; usually baked or poached
	the vessel that contains the seeds of a plant (not the seeds themselves)

gull (adjective)	cod (adjective)
	payable by the recipient on delivery

gull (verb)	cod (verb)
fool or hoax	harass with persistent criticism or carping
make a fool or dupe of	fool or hoax