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Definition of twenty–twenty
1 of the human eye : meeting a standard of normal visual acuity twenty–twenty vision
2 : marked by facilely accurate discernment, judgment, or assessment hindsight is twenty–twenty
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Origin and Etymology of twenty–twenty
from the testing of vision by reading letters at a distance of 20 feet
TWENTY–TWENTY Defined for English Language Learners
twenty-twenty
play
adjective
Definition of twenty–twenty for English Language Learners
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: having good vision and able to see without glasses
Medical Dictionary
twenty–twenty
adjective
twen·ty–twen·ty
Medical Definition of twenty–twenty
: having the normal visual acuity of the human eye that according to one common scale can distinguish at a distance of 20 feet characters one-third inch in diameter twenty–twenty vision
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