解

undo; understand; unravel; notes; key; explanation; understanding; untie

13 strokes. Taught in grade 5. Newspaper frequency rank 176.

Readings

カイ (on reading): 理解 (りかい) understanding; 解決 (かいけつ) settlement
とく (kun reading): 解く (とく) to untie; 謎解き (なぞとき) solving a riddle
とける (kun reading): 解ける (とける) to be solved; 雪解け (ゆきどけ) thawing of snow
ゲ (on reading): 解脱 (げだつ) liberation from earthly desires and the woes of man; 解毒 (げどく) detoxification
ほどく (kun reading): 荷解き (にほどき) unpacking (esp. after moving house); 願解き (がんほどき) visiting a shrine or temple to give thanks for the fulfilment of a prayer
ほぐす (kun reading): 解れる (ほぐれる) to come untied; 割り解す (わりほぐす) to beat (e.g. egg)
とかす (kun reading): 任を解かれる (にんをとかれる) to be relieved of one's post
わかる (kun reading)
さとる (kun reading)

理解 (りかい) understanding
解決 (かいけつ) settlement
解説 (かいせつ) explanation
正解 (せいかい) correct answer
解散 (かいさん) breaking up (a meeting, gathering, etc.)
解く (とく) to untie
謎解き (なぞとき) solving a riddle
解き方 (ときかた) manner of solving
解き放つ (ときはなつ) to release
解き明かす (ときあかす) to uncover
解ける (とける) to be solved
雪解け (ゆきどけ) thawing of snow
打ち解ける (うちとける) to open up (to someone)
霜解け (しもどけ) thaw
打ち解けにくい (うちとけにくい) difficult to make friends with
解脱 (げだつ) liberation from earthly desires and the woes of man
解毒 (げどく) detoxification
解熱剤 (げねつざい) fever medicine
解毒剤 (げどくざい) antidote
解官 (げかん) dismissing a government official
荷解き (にほどき) unpacking (esp. after moving house)
願解き (がんほどき) visiting a shrine or temple to give thanks for the fulfilment of a prayer
切り解く (きりほどく) to cut open (a tied bundle)
解き物 (ほどきもの) unsewing
結び目を解く (むすびめをほどく) to undo a knot
解れる (ほぐれる) to come untied
割り解す (わりほぐす) to beat (e.g. egg)
任を解かれる (にんをとかれる) to be relieved of one's post
解ごす (ほごす) to unfasten

494 words in all.