grease vs filth

grease and filth both are nouns.

Word	Noun	Adjective	Verb	Adverb
grease	Yes	No	Yes	No
filth	Yes	No	No	No

As nouns, grease and filth are synonyms defined as:

Other synonyms of grease include dirt, grime, grunge, soil, stain.

grease (noun)	filth (noun)
anything regarded as making something unclean	an offensive or indecent word or phrase
a thick fatty oil (especially one used to lubricate machinery)	a state characterized by foul or disgusting dirt and refuse
	anything regarded as making something unclean
	any substance considered disgustingly foul or unpleasant

grease (verb)	filth (verb)
lubricate with grease