りかい
understanding, comprehension
You take the logic of the thing apart with a blade until the sense falls out of it. Ree り, and the same Kai かい who unties things in 解放: りかい.
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Emaki is not affiliated with, or endorsed by, Kaishi 1.5k or its authors. The word, reading and meaning come from the Kaishi 1.5k deck, used with their permission. The mnemonic, the note and the kanji breakdown are original work, published under CC BY-SA 4.0.