Definition of "Blur" :

noun: a hazy or indistinct representation

"It happened so fast it was just a blur."

verb: become vague or indistinct

"The distinction between the two theories blurred."

verb: make dim or indistinct

"The fog blurs my vision."

verb: make unclear, indistinct, or blurred

verb: make a smudge on; soil by smudging

verb: become glassy; lose clear vision

verb: to make less distinct or clear

"The haze blurs the hills."