How do you say “Letter (Character)” in Japanese? 「文字(もじ)」Moji
“Letter (Character)” is「文字(もじ)」or「字(じ)」in Japanese. 「(私の)娘が初めて文字を書きました。」means "My daughter wrote letters from the alphabet for the first time."「(私は)目が悪くて、小さな字が読めません。」means "I have bad eyesight and I can't read small text."