blur (blər/verb)

verb: blur; 3rd person present: blurs; past tense: blurred; past participle: blurred; gerund or present participle: blurring

1.
make or become unclear or less distinct.
"tears blurred her vision"
synonyms: cloud, fog, obscure, dim, make hazy, unfocus, soften; More
literarybedim;
archaicblear
"tears blurred her vision"
obscure, make vague, confuse, muddle, muddy, obfuscate, cloud, weaken
"movies blur the difference between villains and victims"
indistinct, blurry, fuzzy, hazy, misty, foggy, shadowy, faint;
unclear, vague, indefinite, unfocused, obscure, nebulous
"a blurred photograph"
antonyms: sharpen, focus

noun
noun: blur; plural noun: blurs

1.
a thing that cannot be seen or heard clearly.
"the pale blur of her face"
synonyms: indistinct shape, smudge; More
haze, cloud, mist
"a blur on the horizon"
an indistinct memory or impression of events, typically because they happened very fast.
"the day before was a blur"