怒る
おこる (okoru)
to get angry
verb (godan)
Example
先生は学生が宿題を忘れて怒りました。
せんせいはがくせいがしゅくだいをわすれておこりました。
Sensei wa gakusei ga shukudai wo wasurete okorimashita.
The teacher got angry because the student forgot their homework.
A common emotion verb. Can also be written as 起こる (to occur) - context determines meaning.