“One character” in Japanese
Short answer
One character in Japanese is “単字” (tanji). Full meaning: individual character, individual letter, one character, one letter.
Other ways to say “One character” in Japanese
一文字
ichimonji straight line, beeline; one (written) character
一人物
ichijinbutsu person to be reckoned with, person of importance; one person, one character, someone
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