gouger vs slicker

gouger and slicker both are nouns.

Word	Noun	Adjective	Verb	Adverb
gouger	Yes	No	No	No
slicker	Yes	No	No	No

As nouns, slicker is a hypernym of gouger; that is, slicker is a word with a broader meaning than gouger:

Other hypernyms of gouger include beguiler, cheat, cheater, deceiver, trickster.

gouger (noun)	slicker (noun)
a person who swindles you by means of deception or fraud	a macintosh made from cotton fabric treated with oil and pigment to make it waterproof
an attacker who gouges out the antagonist's eye	someone who leads you to believe something that is not true
	a person with good manners and stylish clothing