Jōyō kanji, Taught in junior high
JLPT level: N1
1788 of 2500 most used kanji in newspapers
Stroke count: 6
Meaning: vermilion, cinnabar, scarlet, red, bloody
Kunyomi: あけ
Onyomi: シュ
Composition: 丿 未
Radical: 木
Meaning: tree
朱 (シュ) cinnabar, vermillion, red, slightly-orange red, red pigment (and ink made from same), red text (as used to correct documents)
朱印 (シュイン) red seal
堆朱 (ツイシュ) red lacquerware with patterns carved in relief
銀朱 (ギンシュ) vermilion, scarlet
朱 (あけ) scarlet, red
朱に染まる (あけにそまる) to welter in blood, to be covered in blood