twenty-twenty (n)
20/20 (n)

n05655810

type n
lex_filenum 09
def normal visual acuity, as measured by the ability to read charts at a distance of 20 feet
Outgoing links
Hypernym acuity, visual acuity, sharp-sightedness
Incoming links
Hyponym acuity, visual acuity, sharp-sightedness

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