Where does this definition of twenty-twenty vision come from?
This entry for twenty-twenty vision is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does twenty-twenty vision appear elsewhere on Lughet?
Yes — twenty-twenty vision appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.