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to be able to read; to be legible; to be decipherable
to be readable (text, etc.); to read well
to understand; to divine; to perceive; to see
この字は小さくて読めない。
These characters are too small to read.
彼女は五歳で漢字が読めた。
She could read kanji at the age of five.
薄くなって読めなくなった文字もある。
Some characters have faded and become illegible.