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I've noticed a few kanji that appear identical to a kana. 二 is the only example I can remember, where it represents both the kanji ni and the katakana ni, although I'm sure I've seen others. Are there many examples of this? Are they coincidental?

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All of the kana are derived from kanji, some went through some changes, and some not so much, so you'll come across stuff like that often. – Olumide Feb 23 '14 at 16:12
possible duplicate of Distinguishing certain characters in handwriting and print – istrasci Feb 24 '14 at 16:07
up vote 5 down vote accepted

I'm no expert in the history of the Japanese writing system so I'm going to be putting a lot of faith this chart and the idea in general that katakana are derived from small parts of larger kanji. This appears to be generally accepted though Japanese wikipedia notes opposition by one scholar.

If we go by this chart, it's no coincidence that katakana ニ looks like the kanji 二, since it was taken from the kanji 仁 which itself is made up of 人 and 二. Similarly, カ is taken from the 力 in 加, エ is taken from the 工 in 江, ロ is from the 口 in 呂 and チ is directly from 千. I think that covers all ones which are very similar visually.

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"I think that covers all ones which are very similar visually." How about 八 --> ハ, or 三 --> ミ? – Earthliŋ Feb 23 '14 at 18:26
And, since you also seem to be listing katakana which have similar-looking kanji, 夕 and タ – dainichi Feb 24 '14 at 0:03
+1 and accepted. Thanks to @istrasci for the other question as well. – Leo King Mar 6 '14 at 17:18

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