This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Word
Word

でこ
brow; forehead; bump
Word

凹凸

おうとつ
unevenness; roughness; ruggedness
Word

凸凹

でこぼこ、とつおう、だくぼく
unevenness; roughness; ruggedness; inequality
Word

凸版印刷

とっぱんいんさつ
letterpress; relief printing
Word

お凸

御凸
おでこ
brow; forehead; prominent forehead; beetle brow; not catching anything (in fishing)
Word

凸角

突角
とっかく
convex angle
Word

凸面鏡

とつめんきょう
convex mirror
Word

凸面

とつめん
convex surface; convex
Word

凸坊

でこぼう
beetle-browed boy; mischief