3 strokes
genius, years old, cubic shaku
On'Yomi: サイ
Kun'Yomi:
14 strokes
word, speech, language
On'Yomi: ゴ
Kun'Yomi: かた.る, かた.らう
8 strokes
study, learning, science
On'Yomi: ガク
Kun'Yomi: まな.ぶ