slicker vs oilskin

slicker and oilskin both are nouns.

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

As nouns, slicker and oilskin are synonyms defined as:

slicker and oilskin: a macintosh made from cotton fabric treated with oil and pigment to make it waterproof

slicker (noun)	oilskin (noun)
a macintosh made from cotton fabric treated with oil and pigment to make it waterproof	a macintosh made from cotton fabric treated with oil and pigment to make it waterproof
someone who leads you to believe something that is not true
a person with good manners and stylish clothing