blur vs alter

blur is a noun but alter is not a noun.

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

As verbs, alter is a hypernym of blur; that is, alter is a word with a broader meaning than blur:

Other hypernyms of blur include change, modify.

As verbs, alter is a hypernym of blur; that is, alter is a word with a broader meaning than blur:

Other hypernyms of blur include change, modify.

As verbs, alter is a hypernym of blur; that is, alter is a word with a broader meaning than blur:

Other hypernyms of blur include change, modify.

blur (noun)	alter (noun)
a hazy or indistinct representation

blur (verb)	alter (verb)
become vague or indistinct	remove the ovaries of
make dim or indistinct	become different in some particular way, without permanently losing one's or its former characteristics or essence
make unclear, indistinct, or blurred	cause to change; make different; cause a transformation
make a smudge on; soil by smudging	insert words into texts, often falsifying it thereby
to make less distinct or clear	make an alteration to
become glassy; lose clear vision