警
admonish, commandment
On'yomi: ケイ (kei)
Kun'yomi: いまし.める (imashi.meru)
Stroke order
察
guess, presume, surmise, judge, understand
On'yomi: サツ (satsu)
Stroke order
学
study, learning, science
On'yomi: ガク (gaku)
Kun'yomi: まな.ぶ (mana.bu)
Stroke order
校
exam, school, printing, proof, correction
On'yomi: コウ (kou)、 キョウ (kyou)
Stroke order