臍
彼女は姑の気にさわるようなことを言わなければよかったと臍を噛んだ。
She bitterly regretted having said something that displeased her mother-in-law.
彼は臍を固めて一世一代の大事業に乗り出した。
He resolved to embark on a once-in-a-lifetime enterprise.
僕は、僕の母の胎内にいるとき、お臍の穴から、僕の生れる家の中を、覗いてみて、 「こいつは、いけねえ」 と、思った。
When I was inside my mother's womb, I looked through my mother's navel at the house where I would be born and I thought: "No way I'm going there".
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.