骨
skeleton, bone, remains, frame
On'yomi: コツ (kotsu)
Kun'yomi: ほね (hone)
Stroke order
髄
marrow, pith, essence
On'yomi: ズイ (zui)
Stroke order
芽
bud, sprout, spear, germ
On'yomi: ガ (ga)
Kun'yomi: め (me)
Stroke order
球
ball, sphere
On'yomi: キュウ (kyuu)
Kun'yomi: たま (tama)
Stroke order