Noun
Verb (する, intransitive)
1. occurrence; incidence; outbreak; birth (e.g. of civilization)
しかしここで問題が発生する。However, a problem arises here.
Noun
Verb (する, transitive)
2. generation (of power, heat, etc.); production
この機械は電気を発生させる。This machine generates electricity.
Noun
Verb (する, intransitive)
Biology
3. ontogeny; development; growth; breeding