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

おう
concave; hollow; sunken
Word

くぼ
hollow; cavity; sunken place; vagina; female genitalia
Word

凹凸

おうとつ
unevenness; roughness; ruggedness
Word

凹む

v5m
へこむ
to be dented; to be indented; to yield to; to give; to sink; to collapse; to cave in; to be overwhelmed; to feel down; to be forced to yield; to be daunted; to be snubbed
Word

窪む

凹む
v5m
くぼむ
to cave in; to become depressed; to sink
Word

凸凹

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

凹面

おうめん
concavity; concave; concavo
Word

凹版

おうはん、おうばん
intaglio (printing)
Word

凹版印刷

おうはんいんさつ
intaglio printing
Word

凹溜まり

窪溜まり
くぼたまり
hollow; pond in a hollow