Japanese

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For pronunciation and definitions of とうてつ – see the following entries.
透徹
[verb] to be perfectly clear
[verb] to be logical, consistent, penetrating
[noun] Same as above
饕餮
[noun] a taotie
[noun] (figuratively) a brutal or covetous person
(This term, とうてつ (tōtetsu), is the hiragana spelling of the above terms.)