twenty-twenty

American  

[twen-tee-twen-tee, twuhn-tee-twuhn-tee] / ˈtwɛn tiˈtwɛn ti, ˈtwʌn tiˈtwʌn ti /

Or 20/20

adjective

1. Ophthalmology. having normal visual acuity.

2. keenly or acutely perceptive.

   an opinion based on twenty-twenty hindsight.

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twenty-twenty British  

adjective

1. med (of vision) being of normal acuity: usually written 20/20

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twenty-twenty Scientific  

/ twĕn′tē-twĕn′tē /

1. 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.

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Etymology

Origin of twenty-twenty

First recorded in 1875–80; extracted from Ophthalmic Manual (1875), by Sir Thomas Longmore, chief medical officer of the British armed forces

Example Sentences

John Cammegh KC, prosecuting, said police analysis of Mr McCullum's phone "provides a twenty-twenty insight not just as to what the defendant was browsing online, but, equally, into his very mindset".

From BBC

The words “two thousand and nineteen” just don’t have the futuristic ring of “twenty-twenty”, which at times looks like computer output and sounds like robot-speak.

From The Guardian

Her mother would also have said, “There but for the grace of God go I”; “Hindsight is twenty-twenty”; and “Better than canned beer.”

From The New Yorker

“My eyes are twenty-twenty, my hearing is perfect, and my arthritis is gone!”

From Literature

Like they always say, the rearview mirror is twenty-twenty.

From Literature