shammer vs slicker

shammer and slicker both are nouns.

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

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

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

shammer (noun)	slicker (noun)
a person who makes deceitful pretenses	a macintosh made from cotton fabric treated with oil and pigment to make it waterproof
someone shirking their duty by feigning illness or incapacity	someone who leads you to believe something that is not true
	a person with good manners and stylish clothing