twenty-twenty or 20-20 [ twen-tee-twen-tee, twuhn-tee-twuhn-tee ]
1. Ophthalmology. having normal visual acuity.
2. keenly or acutely perceptive: an opinion based on twenty-twenty hindsight.
WORDS RELATED TO TWENTY-TWENTY
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Origin: First recorded in 1935–40
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