増
increase, add, augment, gain, promote
On'yomi: ゾウ (zou)
Kun'yomi: ま.す (ma.su)、 ま.し (ma.shi)、 ふ.える (fu.eru)、 ふ.やす (fu.yasu)
Stroke order
補
supplement, supply, make good, offset, compensate, assistant, learner
On'yomi: ホ (ho)
Kun'yomi: おぎな.う (ogina.u)
Stroke order
改
reformation, change, modify, mend, renew, examine, inspect, search
On'yomi: カイ (kai)
Kun'yomi: あらた.める (arata.meru)、 あらた.まる (arata.maru)
Stroke order
訂
revise, correct, decide
On'yomi: テイ (tei)
Kun'yomi: ただ.す (tada.su)
Stroke order