blur vs mental representation

blur and mental representation both are nouns.

Word	Noun	Adjective	Verb	Adverb
blur	Yes	No	Yes	No
mental representation	Yes	No	No	No

As nouns, mental representation is a hypernym of blur; that is, mental representation is a word with a broader meaning than blur:

blur: a hazy or indistinct representation
mental representation: a presentation to the mind in the form of an idea or image

Other hypernyms of blur include internal representation, representation.

blur (noun)	mental representation (noun)
a hazy or indistinct representation	a presentation to the mind in the form of an idea or image

blur (verb)	mental representation (verb)
become vague or indistinct
make dim or indistinct
make unclear, indistinct, or blurred
make a smudge on; soil by smudging
to make less distinct or clear
become glassy; lose clear vision