blur

To blur is to make or become unfocused and fuzzy. Crying hard can cause your vision to blur until you wipe your tears away.

Heavy smog or early morning fog can blur your view of the city, and two candidates' similar views can blur the differences between their political parties. In both cases, things become indistinct and hazy. You can also call the haze itself a blur: "The whole day was just a blur after the exciting news I got in the morning." In the 16th century, blur meant "smear on the surface of writing."

Definitions of blur
1

v make unclear, indistinct, or blurred

Synonyms:
confuse, obnubilate, obscure
confound, confuse
mistake one thing for another
Types:
muddy
cause to become muddy
Type of:
alter, change, modify
cause to change; make different; cause a transformation

v to make less distinct or clear

“The haze blurs the hills”
Antonyms:
focus
cause to converge on or toward a central point
Type of:
alter, change, modify
cause to change; make different; cause a transformation

v make dim or indistinct

“The fog blurs my vision”
Synonyms:
blear
Antonyms:
focalise, focalize, focus, sharpen
put (an image) into focus
Type of:
alter, change, modify
cause to change; make different; cause a transformation

v make a smudge on; soil by smudging

Synonyms:
smear, smudge, smutch
Types:
resmudge
smudge again
dust
rub the dust over a surface so as to blur the outlines of a shape
Type of:
rub
move over something with pressure

v become vague or indistinct

“The distinction between the two theories blurred
Synonyms:
dim, slur
Antonyms:
focalise, focalize, focus
become focussed or come into focus
Types:
efface, obliterate
remove completely from recognition or memory
Type of:
weaken
become weaker

v become glassy; lose clear vision

Synonyms:
film over, glaze over

n a hazy or indistinct representation

“it happened so fast it was just a blur
Synonyms:
fuzz
Type of:
internal representation, mental representation, representation
a presentation to the mind in the form of an idea or image

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