twenty-twenty

adjective
twen·​ty-twen·​ty | \ ˈtwen-tē How to pronounce twenty-twenty (audio) , 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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Time Traveler for twenty-twenty

Time Traveler

The first known use of twenty-twenty was in 1875

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Cite this Entry

“Twenty-twenty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/twenty-twenty. Accessed 12 Jul. 2020.

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More Definitions for twenty-twenty

twenty-twenty

adjective
How to pronounce twenty-twenty (audio)

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 How to pronounce 20/20 (audio) \

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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