gazump vs gouge

gazump is not a noun while gouge is a noun.

Word	Noun	Adjective	Verb	Adverb
gazump	No	No	Yes	No
gouge	Yes	No	Yes	No

As verbs, gouge is a hyponym of gazump; that is, gouge is a word with a more specific, narrower meaning than gazump:

Other hyponyms of gazump include extort, rack, squeeze, wring.

gazump (noun)	gouge (noun)
	the act of gouging
	and edge tool with a blade like a trough for cutting channels or grooves
	an impression in a surface (as made by a blow)

gazump (verb)	gouge (verb)
rip off; ask an unreasonable price	force with the thumb
raise the price of something after agreeing on a lower price	make a groove in
	obtain by coercion or intimidation