- 1[intransitive, transitive] if the shape or outline of something blurs, or if something blurs it, it becomes less clear and sharp The writing blurred and danced before his eyes. blur something The mist blurred the edges of the buildings.
- 2[transitive, intransitive] blur (something) if something blurs your eyes or vision, or your eyes or visionblur, you cannot see things clearly Tears blurred her eyes.
- 3[intransitive, transitive] to become or make something become difficult to distinguish clearly The differences between art and life seem to have blurred. blur something She tends to blur the distinction between her friends and her colleagues.
NAmE//blər//Verb Forms present simple I / you / we / they blur
he / she / it blurs
past simple blurred
-ing form blurring