twenty twenty
tiˈtwɛn adjective
1.
Ophthalmology. having normal visual acuity.
2.
keenly or acutely perceptive: an opinion based on twenty-twenty hindsight.
Also, 20-20.
Origin:
1935–40
1935–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
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Link To twenty twenty
Collins
World English Dictionary
| twenty-twenty | |
| —adj | |
| med (of vision) being of normal acuity: usually written 20/20 | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Twenty twenty
is always a great word to know.
So is ninnyhammer. Does it mean:
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a fool or simpleton; ninny. |
American Heritage
Science Dictionary
twenty-twenty or 20/20  (twěn'tē-twěn'tē) Pronunciation Key
Having normal visual acuity. A person with twenty-twenty vision can see type as small as one-third of an inch at a distance of twenty feet. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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