twenty-twenty

adjective
twen·ty-twen·ty | \ˈtwen-tē, ˈtwən-\
variants: or 20/20

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

First Known Use of twenty-twenty

1875, in the meaning defined at sense 1

History and Etymology for twenty-twenty

from the testing of vision by reading letters at a distance of 20 feet

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Phrases Related to twenty-twenty

twenty-twenty hindsight

twenty-twenty vision

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Time Traveler for twenty-twenty

The first known use of twenty-twenty was in 1875

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More Definitions for twenty-twenty

twenty-twenty

adjective

English Language Learners Definition of twenty-twenty

: having good vision and able to see without glasses

twenty-twenty

adjective
twen·ty-twen·ty
variants: or 20/20 \ˌtwent-ē-ˈtwent-ē \

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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