Kanji
固
Harden
Also: Set, Clot, Curdle, Hard, Solid
On'yomi
- こ ko
Kun'yomi
- かた(い) katai
Stroke count, radical and JLPT level of 固
固 has 8 strokes and its Kangxi radical is 囗 (enclosure), number 31. Hashidari places it at JLPT N2. Japanese students learn it in grade 4 of elementary school.
No official JLPT kanji list exists: the level is Hashidari's own placement. How we place kanji