Kanji
開
Open
Also: Unfold, Unseal
On'yomi
- かい kai
Kun'yomi
- ひら(く) hiraku
- びら bira
- あ(く) aku
Stroke count, radical and JLPT level of 開
開 has 12 strokes and its Kangxi radical is 門 (gate), number 169. Hashidari places it at JLPT N4. Japanese students learn it in grade 3 of elementary school.
No official JLPT kanji list exists: the level is Hashidari's own placement. How we place kanji