Japanese edit

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, is the hiragana spelling of the above terms.)