1. Noun, Suru verb, Intransitive verb

   1.

   dropping out of school; withdrawal from school

2. 2.

   expulsion from school; dismissal

3. 3.

   leaving school (university, etc.) after completing a course

Example sentences

• 退学になっちゃった。

  I was expelled from school.

• 私は学校を退学になった。

  I flunked out of school.