splotch vs slur

splotch and slur both are nouns.

Word	Noun	Adjective	Verb	Adverb
splotch	Yes	No	Yes	No
slur	Yes	No	Yes	No

As nouns, slur is a hypernym of splotch; that is, slur is a word with a broader meaning than splotch:

Other hypernyms of splotch include blot, daub, smear, smirch, smudge, spot.

splotch (noun)	slur (noun)
an irregularly shaped spot	a blemish made by dirt
	a disparaging remark
	(music) a curved line spanning notes that are to be played legato

splotch (verb)	slur (verb)
blotch or spot	become vague or indistinct
	utter indistinctly
	speak disparagingly of; e.g., make a racial slur
	play smoothly or legato