noun, noun which may take the genitive case particle 'no'
Used primarily in educational contexts for subjects, courses, or credits that are mandatory. Often appears as 必修科目 (required subject) or 必修単位 (required credits).
この科目は必修です。
This subject is required.
必修科目を落とすと卒業できません。
If you fail a required subject, you cannot graduate.
The university made English speaking a required course.
Starting next school year, programming classes will become mandatory.