blur

verb, noun, adj — 12 senses

blur

verb

AU, UK /ˈblɜː/ · UK /bləː/

Etymology From earlier blurre, probably an alteration of blear, from Middle English bleren, from Old English *blerian (attested in āblered (“made bare, made bald”)), from Proto-West Germanic *blaʀjan, from Proto-Germanic *blazjaną (“to make pale”), from Proto-Germanic *blasaz (“pale”). Compare Scots blore, bloar (“to blur, cover with blots”), Low German bleeroged (“blear-eyed”). More at blear.

7 senses
  1. 1To make indistinct or hazy, to obscure or dim.
  2. 2To smear, stain or smudge.
  3. 3To become indistinct.
  4. 4To cause imperfection of vision in; to dim; to darken.
  5. 5To sully; to stain; to blemish, as reputation.
  6. 6To transfer the input focus away from.
  7. 7To use a sign, image, expression, etc. sufficiently…
1

To make indistinct or hazy, to obscure or dim.

  • to blur a photograph (by moving the camera while taking it)
2

To smear, stain or smudge.

  • to blur a manuscript (by handling it while damp)
3

To become indistinct.

4

To cause imperfection of vision in; to dim; to darken.

  • His eyes are blurred with the lightning's glare.1819, Joseph Rodman Drake, The Culprit Fay:
5

Obsolete To sully; to stain; to blemish, as reputation.

  • Sarcasms may eclipse thine own, / But cannot blur my lost renown.1662 (indicated as 1663), [Samuel Butler], “[The First Part of Hudibras]”, in Hudibras. The First and Second Parts. […], London: […] John Martyn and Henry Herringman, […], published 1678; republished in A[lfred] R[ayney] Waller, editor, Hudibras: Written in the Time of the Late Wars, Cambridge, Cambridgeshire: University Press, 1905, →OCLC:
6

Computing, Engineering, Graphical user interface, Mathematics, Natural sciences, Physical sciences, Sciences To transfer the input focus away from.

  • Then give this box focus to blur the first one: […]2003, John Pollock, JavaScript: A Beginner's Guide, Second Edition, page 175:
  • These form elements need to have an onFocus event handler to blur the current focus.2001, Martin Webb, Michel Plungjan, Keith Drakard, Instant JavaScript, page 678:
2 more examples
  • Blurring one window and focusing on another window yields the same result of sending the window to the back of the pile.2007, Danny Goodman, JavaScript Bible, page 273:
  • A manual way to blur a text object is to press the Tab key, which advances focus to the next field in order and removes it from the current field (blurring it).2010, Chuck Easttom, Advanced JavaScript, page 329:
7

Copyright, Intellectual property, Law To use a sign, image, expression, etc. sufficiently close to a trademarked one that it causes confusion between them.

Antonyms
sharpen
Derived terms
ablur, beblur, blurrable, blurrer, blurringly, blur the line, blur the lines, deblur, nonblurring, unblur

blur

noun

Etymology From earlier blurre, probably an alteration of blear, from Middle English bleren, from Old English *blerian (attested in āblered (“made bare, made bald”)), from Proto-West Germanic *blaʀjan, from Proto-Germanic *blazjaną (“to make pale”), from Proto-Germanic *blasaz (“pale”). Compare Scots blore, bloar (“to blur, cover with blots”), Low German bleeroged (“blear-eyed”). More at blear.

1

A smear, smudge or blot.

2

Something that appears hazy or indistinct.

  • The surroundings went by in a blur.
  • Maccario, it was evident, did not care to take the risk of blundering upon a picket, and a man led them by twisting paths until at last the hacienda rose blackly before them. Appleby could see it dimly, a blur of shadowy buildings with the ridge of roof parapet alone cutting hard and sharp against the clearing sky.1907 January, Harold Bindloss, chapter 26, in The Dust of Conflict, 1st Canadian edition, Toronto, Ont.: McLeod & Allen, →OCLC:
1 more example
  • The fightback when it came was in the [Roger] Federer fashion: unfussy, filled with classy strokes from the back with perfectly timed interventions at the net that confounded his opponent. The third set passed in a bit of a blur, the fourth, which led to the second tie-break, was the most dramatic of the match.2012 June 29, Kevin Mitchell, “Roger Federer back from Wimbledon 2012 brink to beat Julien Benneteau”, in The Guardian, archived from the original on 15 Nov 2016:
3

Haziness, blurriness.

  • Unfortunately, a small artificial pupil also tends to increase the amount of diffraction somewhat, but this increase in blur is considerably smaller than the decrease that results from the control of other factors.1978, Stanley Coren, Joan S. Girgus, Seeing Is Deceiving: The Psychology of Visual Illusions, Lawrence Erlbaum Associates, Inc., →ISBN, page 82:
  • The second option (right-hand page) features a sharp background and a cyclist who appears as a smudge of blur.2014, Albrecht Rissler, Photographic Composition: Principles of Image Design, Rocky Nook, Inc., →ISBN:
1 more example
  • Selectively applying blur to the edges can give the impression of a toy camera or a tilt-shift lens.2016, Kat Sloma, Art with an iPhone: A Photographer’s Guide to Creating Altered Realities, Amherst Media, →ISBN:
4

Obsolete A moral stain or blot.

  • […]with her raillyng sette a great blurre on myne honesty1548, Nicolas Udall, The first tome or volume of the Paraphrase of Erasmus vpon the newe testamente:
Derived terms
anti-blur, blurless, blurry, Blursday, motion blur, zoom blur

blur

adj

Etymology From earlier blurre, probably an alteration of blear, from Middle English bleren, from Old English *blerian (attested in āblered (“made bare, made bald”)), from Proto-West Germanic *blaʀjan, from Proto-Germanic *blazjaną (“to make pale”), from Proto-Germanic *blasaz (“pale”). Compare Scots blore, bloar (“to blur, cover with blots”), Low German bleeroged (“blear-eyed”). More at blear.

1

Manglish, Singlish Lacking awareness; clueless or confused.

  • If a Singaporean gets frustrated at your stupidity, he can scold you for being blur as sotong (clueless as a squid).2002 July 22, Hwee Hwee Tan, “A War of Words Over ‘Singlish’”, in Time, archived from the original on 28 Jan 2025:
  • Even if you don't know, just pretend as if you know-lah Mike. You are embarrassing me you know. If you are so blur like this, how to accept you as my sidekick man?2007, Elangovan, P, Singapore, →ISBN, →OCLC, page 47:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.

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