slur vs blur

slur and blur both are nouns.

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

As verbs, slur and blur are synonyms defined as:

Other synonyms of slur include dim.

slur (noun)	blur (noun)
a blemish made by dirt	a hazy or indistinct representation
a disparaging remark
(music) a curved line spanning notes that are to be played legato

slur (verb)	blur (verb)
become vague or indistinct	become vague or indistinct
utter indistinctly	make dim or indistinct
speak disparagingly of; e.g., make a racial slur	make unclear, indistinct, or blurred
play smoothly or legato	make a smudge on; soil by smudging
	to make less distinct or clear
	become glassy; lose clear vision