Jōyō kanji, Taught in junior high
JLPT level: N1
1911 of 2500 most used kanji in newspapers
Stroke count: 12
Meaning: chinquapin, mallet, spine
Kunyomi: つち う.つ
Onyomi: ツイ スイ
Composition: 木 隹
Radical: 木
Meaning: tree
椎間板 (ツイカンバン) intervertebral disk
椎間孔狭窄 (ツイカンコウキョウサク) vertebral canal stenosis
脊椎 (セキツイ) spine, vertebral column
腰椎 (ヨウツイ) lumbar vertebra, lumbar vertebrae